Flow report
Montana River Levels & Streamflow
As of Sep 2, 2026, Montana rivers are running at 89% of normal across 171 USGS gauges — the highest is 9,140 cfs on the Kootenai River Bl Libby Dam Nr Libby Mt. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Montana.
USGS gauges
171
State percent normal
89%
Paddle runs
17
Updated
Sep 2
Open the Montana flow layer on the map
Every USGS streamgauge filtered to Montana.
Open the map →
September
2
2026
Flow briefing
Streamflow levels across Montana are currently 89% of normal, with the Kootenai River Bl Libby Dam Nr Libby Mt reporting the highest discharge in the state at 9,140 cfs and a gauge stage of 19.88 ft.
Meanwhile, the Clarks Fork Yellowstone River At Edgar Mt is seeing a spike today — up 16% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Montana's named rivers.
River levels near Montana towns
Montana at a glance
State-wide streamflow overview
The Montana flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
89%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Kootenai River Bl Libby Dam Nr Libby Mt
9,140 cfs
Gauge stage 19.88 ft
Biggest 24h spike
Clarks Fork Yellowstone River At Edgar Mt
+16%
Now 390 cfs
Network coverage
Gauges + rivers tracked
171 + 0
USGS gauges feeding 0 named rivers in Montana.
Where every gauge actually sits
One dot per Montana streamgauge, placed by its own percent of normal. The state average is a single line through all of it.
0%
50%
100% · normal
150%
200%+
Much below normalunder 50%
Below normal50–90%
Near normal90–110%
Above normal110–150%
Much above normalover 150%
Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.
Montana streamflow, three water years
Statewide percent of normal, every day since Aug 2023. The dotted line is normal.
89%
of normal today
+14pts
vs this day last year (75%)
266of 366
days below normal, past year
146%
3-year peak · Mar 2026
50%
100% normal
150%
Aug 2023
202420252026
Sep 1, 2026
799 daily readings from 169 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.
Full streamgauge inventory
Montana USGS streamgauges
Every USGS gauge Snoflo tracks in Montana. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Clark Fork Near Plains Mt, Mt
22 hours ago · USGS 12389000 |
8,080 cfs | 4.03 ft | · | 52°F | 2,456 ft | Lower Clark Fork |
|
Kootenai River Bl Libby Dam Nr Libby Mt, Mt
22 hours ago · USGS 12301933 |
7,740 cfs | 19.40 ft | 39°F | 46°F | 2,121 ft | Upper Kootenai |
|
Missouri River Near Wolf Point Mt, Mt
23 hours ago · USGS 06177000 |
7,070 cfs | 10.73 ft | 60°F | 47°F | 1,968 ft | Prarie Elk-Wolf |
|
Missouri River Near Culbertson Mt, Mt
23 hours ago · USGS 06185500 |
6,890 cfs | 3.09 ft | · | 47°F | 1,889 ft | Charlie-Little Muddy |
|
Flathead River At Perma Mt, Mt
23 hours ago · USGS 12388700 |
6,110 cfs | 7.87 ft | 68°F | 53°F | 2,479 ft | Lower Flathead |
|
Flathead River Near Polson Mt, Mt
22 hours ago · USGS 12372000 |
5,610 cfs | 4.69 ft | 69°F | 46°F | 2,697 ft | Lower Flathead |
|
Missouri River Near Landusky Mt, Mt
23 hours ago · USGS 06115200 |
5,430 cfs | 13.30 ft | 68°F | 52°F | 2,247 ft | Fort Peck Reservoir |
|
Missouri River At Virgelle Mt, Mt
23 hours ago · USGS 06109500 |
4,890 cfs | 2.96 ft | · | 51°F | 2,518 ft | Bullwhacker-Dog |
|
Flathead River At Columbia Falls Mt, Mt
22 hours ago · USGS 12363000 |
4,460 cfs | 4.29 ft | 58°F | 45°F | 2,987 ft | Flathead Lake |
|
Missouri River At Fort Benton Mt, Mt
23 hours ago · USGS 06090800 |
4,410 cfs | 1.95 ft | · | 50°F | 2,621 ft | Upper Missouri-Dearborn |
|
Yellowstone River At Forsyth Mt, Mt
22 hours ago · USGS 06295000 |
4,220 cfs | 1.43 ft | · | 51°F | 2,524 ft | Lower Yellowstone-Sunday |
|
Missouri River Near Great Falls Mt, Mt
22 hours ago · USGS 06090300 |
3,870 cfs | 2.92 ft | · | 49°F | 3,029 ft | Upper Missouri-Dearborn |
|
Yellowstone River At Miles City Mt, Mt
23 hours ago · USGS 06309000 |
3,870 cfs | 2.50 ft | · | 50°F | 2,336 ft | Lower Yellowstone-Sunday |
|
Missouri River Bl Holter Dam Nr Wolf Cr Mt, Mt
22 hours ago · USGS 06066500 |
3,690 cfs | 3.27 ft | 65°F | 52°F | 3,465 ft | Upper Missouri |
|
Yellowstone River At Glendive Mt, Mt
23 hours ago · USGS 06327500 |
3,570 cfs | 42.20 ft | · | 48°F | 2,045 ft | Lower Yellowstone |
|
Missouri River At Cascade Mt, Mt
23 hours ago · USGS 06074000 |
3,530 cfs | 6.68 ft | · | 48°F | 3,345 ft | Upper Missouri-Dearborn |
|
Missouri River Near Ulm Mt, Mt
23 hours ago · USGS 06078200 |
3,470 cfs | 2.82 ft | · | 47°F | 3,316 ft | Upper Missouri-Dearborn |
|
Missouri River Bl Hauser Lake Nr Helena Mt, Mt
23 hours ago · USGS 06065500 |
3,400 cfs | 3.92 ft | · | 47°F | 3,588 ft | Upper Missouri |
|
Yellowstone River At Billings Mt, Mt
23 hours ago · USGS 06214500 |
3,010 cfs | 2.89 ft | 67°F | 53°F | 3,090 ft | Upper Yellowstone-Pompeys Pillar |
|
S F Flathead River Nr Columbia Falls Mt, Mt
22 hours ago · USGS 12362500 |
3,010 cfs | 6.26 ft | 59°F | 47°F | 3,049 ft | South Fork Flathead |
|
Clark Fork At St. Regis Mt, Mt
22 hours ago · USGS 12354500 |
2,440 cfs | 5.10 ft | · | 48°F | 2,604 ft | Middle Clark Fork |
|
Yellowstone River Near Livingston Mt, Mt
23 hours ago · USGS 06192500 |
2,170 cfs | · | 62°F | 53°F | 4,554 ft | Upper Yellowstone |
|
Yellowstone River Near Sidney Mt, Mt
23 hours ago · USGS 06329500 |
2,110 cfs | · | 69°F | 48°F | 1,889 ft | Lower Yellowstone |
|
Missouri River At Toston Mt, Mt
23 hours ago · USGS 06054500 |
1,880 cfs | 3.20 ft | 64°F | 47°F | 3,911 ft | Upper Missouri |
|
Yellowstone River At Corwin Springs Mt, Mt
23 hours ago · USGS 06191500 |
1,810 cfs | 1.88 ft | 60°F | 47°F | 5,094 ft | Upper Yellowstone |
|
Clark Fork Below Missoula Mt, Mt
23 hours ago · USGS 12353000 |
1,780 cfs | · | · | 46°F | 3,103 ft | Middle Clark Fork |
|
Bighorn River Near St. Xavier, Mt
23 hours ago · USGS 06287000 |
1,640 cfs | 59.76 ft | 53°F | 53°F | 3,152 ft | Lower Bighorn |
|
Bighorn River Ab Tullock Cr Nr Bighorn Mt, Mt
23 hours ago · USGS 06294500 |
1,590 cfs | · | · | 50°F | 2,723 ft | Lower Bighorn |
|
Madison River Bl Ennis Lake Nr Mcallister Mt, Mt
23 hours ago · USGS 06041000 |
1,330 cfs | 3.83 ft | 66°F | 52°F | 4,705 ft | Madison |
|
Clark Fork Above Missoula Mt, Mt
22 hours ago · USGS 12340500 |
1,140 cfs | 2.42 ft | 60°F | 47°F | 3,208 ft | Middle Clark Fork |
|
Madison River Near Cameron Mt, Mt
23 hours ago · USGS 06040000 |
960 cfs | 2.19 ft | 58°F | 44°F | 5,149 ft | Madison |
|
Madison River At Kirby Ranch Nr Cameron Mt, Mt
23 hours ago · USGS 06038800 |
886 cfs | 1.79 ft | 57°F | 44°F | 5,874 ft | Madison |
|
N F Flathead River Nr Columbia Falls Mt, Mt
22 hours ago · USGS 12355500 |
851 cfs | 2.07 ft | 57°F | 44°F | 3,151 ft | North Fork Flathead |
|
St. Mary River Near Babb Mt, Mt
23 hours ago · USGS 05017500 |
802 cfs | 3.07 ft | · | 44°F | 4,474 ft | St. Mary |
|
Madison River Bl Hebgen Lake Nr Grayling Mt, Mt
22 hours ago · USGS 06038500 |
760 cfs | 1.61 ft | 61°F | 43°F | 6,466 ft | Madison |
|
Marias River Near Chester Mt, Mt
23 hours ago · USGS 06101500 |
732 cfs | 3.76 ft | · | 49°F | 2,822 ft | Marias |
|
Marias River Near Loma Mt, Mt
23 hours ago · USGS 06102050 |
718 cfs | 1.49 ft | 64°F | 50°F | 2,580 ft | Marias |
|
Middle Fork Flathead River Nr West Glacier Mt, Mt
22 hours ago · USGS 12358500 |
714 cfs | 1.95 ft | 54°F | 43°F | 3,131 ft | Middle Fork Flathead |
|
Bitterroot River Near Missoula Mt, Mt
23 hours ago · USGS 12352500 |
682 cfs | 3.08 ft | 64°F | 45°F | 3,130 ft | Bitterroot |
|
Blackfoot River Near Bonner Mt, Mt
23 hours ago · USGS 12340000 |
627 cfs | 2.15 ft | 60°F | 51°F | 3,357 ft | Blackfoot |
|
St. Mary Canal At St. Mary Crossing Near Babb Mt, Mt
23 hours ago · USGS 05018500 |
609 cfs | 23.59 ft | · | 46°F | 4,462 ft | St. Mary |
|
Sun River Near Vaughn Mt, Mt
23 hours ago · USGS 06089000 |
571 cfs | 2.50 ft | · | 46°F | 3,330 ft | Sun |
|
Clark Fork At Turah Bridge Nr Bonner Mt, Mt
23 hours ago · USGS 12334550 |
550 cfs | 1.40 ft | · | 49°F | 3,321 ft | Upper Clark Fork |
|
Milk River At Eastern Crossing Of Int Bndry, Mt
23 hours ago · USGS 06135000 |
528 cfs | 4.02 ft | · | 45°F | 2,656 ft | Upper Milk |
|
Stillwater River Near Absarokee Mt, Mt
23 hours ago · USGS 06205000 |
518 cfs | 1.79 ft | 59°F | 48°F | 3,880 ft | Stillwater |
|
Jefferson River Near Twin Bridges Mt, Mt
23 hours ago · USGS 06026500 |
480 cfs | 2.75 ft | 64°F | 45°F | 4,588 ft | Jefferson |
|
Swan River Near Bigfork Mt, Mt
22 hours ago · USGS 12370000 |
464 cfs | 2.39 ft | · | 50°F | 3,081 ft | Swan |
|
S F Flathead R Ab Twin C Nr Hungry Horse Mt, Mt
22 hours ago · USGS 12359800 |
458 cfs | 4.89 ft | 57°F | 44°F | 3,586 ft | South Fork Flathead |
|
Gallatin River At Logan Mt, Mt
23 hours ago · USGS 06052500 |
455 cfs | 4.76 ft | 62°F | 45°F | 4,093 ft | Gallatin |
|
Bitterroot River Near Darby Mt, Mt
23 hours ago · USGS 12344000 |
445 cfs | 2.23 ft | 61°F | 52°F | 3,955 ft | Bitterroot |
|
Milk River Near Harlem Mt, Mt
23 hours ago · USGS 06154100 |
440 cfs | 5.61 ft | · | 46°F | 2,329 ft | Middle Milk |
|
Jefferson River Near Three Forks Mt, Mt
23 hours ago · USGS 06036650 |
428 cfs | 2.20 ft | 66°F | 44°F | 4,066 ft | Jefferson |
|
Gallatin River Near Gallatin Gateway Mt, Mt
23 hours ago · USGS 06043500 |
424 cfs | 1.51 ft | · | 50°F | 5,189 ft | Gallatin |
|
Clarks Fork Yellowstone River At Edgar Mt, Mt
23 hours ago · USGS 06208500 |
368 cfs | 1.61 ft | · | 48°F | 3,450 ft | Clarks Fork Yellowstone |
|
West Fork Bitterroot River Nr Conner Mt, Mt
23 hours ago · USGS 12342500 |
345 cfs | 2.10 ft | · | 44°F | 4,678 ft | Bitterroot |
|
Milk River At Havre Mt, Mt
23 hours ago · USGS 06140500 |
305 cfs | 1.36 ft | · | 48°F | 2,468 ft | Middle Milk |
|
Madison River Near West Yellowstone Mt, Mt
23 hours ago · USGS 06037500 |
303 cfs | 1.64 ft | 60°F | 37°F | 6,634 ft | Madison |
|
Flathead River At Flathead British Columbia, Mt
22 hours ago · USGS 12355000 |
288 cfs | 4.52 ft | · | 38°F | 3,983 ft | North Fork Flathead |
|
Bitterroot River At Bell Crossing Nr Victor Mt, Mt
23 hours ago · USGS 12350250 |
275 cfs | 4.17 ft | · | 44°F | 3,328 ft | Bitterroot |
|
Clark Fork Near Drummond Mt, Mt
23 hours ago · USGS 12331800 |
263 cfs | 2.45 ft | · | 42°F | 3,803 ft | Upper Clark Fork |
|
Muddy Creek At Vaughn Mt, Mt
23 hours ago · USGS 06088500 |
261 cfs | 4.48 ft | · | 45°F | 3,347 ft | Sun |
|
Judith River Nr Mouth, Mt
23 hours ago · USGS 06114700 |
256 cfs | 4.88 ft | · | 50°F | 2,496 ft | Judith |
|
Rock Creek Near Clinton Mt, Mt
22 hours ago · USGS 12334510 |
250 cfs | 5.24 ft | 56°F | 47°F | 3,532 ft | Upper Clark Fork |
|
Sun River Bl Diversion Dam Nr Augusta Mt, Mt
22 hours ago · USGS 06080900 |
234 cfs | 4.15 ft | · | 47°F | 4,372 ft | Sun |
|
Clarks Fork Yellowstone River Nr Belfry Mt, Mt
22 hours ago · USGS 06207500 |
231 cfs | · | · | 54°F | 3,994 ft | Clarks Fork Yellowstone |
|
Ruby River Bl Reservoir Nr Alder Mt, Mt
22 hours ago · USGS 06020600 |
228 cfs | 3.32 ft | · | 47°F | 5,291 ft | Ruby |
|
Beaverhead River At Barretts Mt, Mt
23 hours ago · USGS 06016000 |
227 cfs | 1.18 ft | · | 47°F | 5,279 ft | Beaverhead |
|
Big Hole River At Maiden Rock Nr Divide Mt, Mt
22 hours ago · USGS 06025250 |
223 cfs | 2.72 ft | 57°F | 48°F | 5,315 ft | Big Hole |
|
Nf Blackfoot R Ab Dry Gulch Nr Ovando Mt, Mt
22 hours ago · USGS 12338300 |
216 cfs | 4.55 ft | 50°F | 35°F | 4,075 ft | Blackfoot |
|
Rock Creek Near Red Lodge Mt, Mt
22 hours ago · USGS 06209500 |
213 cfs | 6.00 ft | · | 53°F | 6,392 ft | Clarks Fork Yellowstone |
|
Big Hole River Near Glen Mt, Mt
23 hours ago · USGS 06026210 |
204 cfs | 2.24 ft | 62°F | 44°F | 4,847 ft | Big Hole |
|
Sun River Bl Willow Cr Nr Augusta Mt, Mt
23 hours ago · USGS 06082200 |
201 cfs | 2.19 ft | · | 51°F | 3,966 ft | Sun |
|
West Rosebud Creek Near Roscoe Mt, Mt
22 hours ago · USGS 06204050 |
196 cfs | 1.28 ft | · | 48°F | 6,594 ft | Stillwater |
|
Big Hole River Near Melrose Mt, Mt
23 hours ago · USGS 06025500 |
189 cfs | 1.27 ft | 61°F | 45°F | 5,043 ft | Big Hole |
|
Marias River Near Shelby Mt, Mt
23 hours ago · USGS 06099500 |
180 cfs | 2.61 ft | · | 48°F | 3,099 ft | Marias |
|
Blackfoot R Ab Nevada Cr Nr Helmville Mt, Mt
22 hours ago · USGS 12335100 |
179 cfs | 3.81 ft | · | 37°F | 4,262 ft | Blackfoot |
|
Milk River At Juneberg Bridge Nr Saco Mt, Mt
23 hours ago · USGS 06164510 |
174 cfs | 3.12 ft | · | 47°F | 2,147 ft | Frenchman |
|
Thompson River Near Thompson Falls Mt, Mt
22 hours ago · USGS 12389500 |
152 cfs | 2.76 ft | · | 54°F | 2,440 ft | Lower Clark Fork |
|
Tongue R Bl Brandenberg Bridge Nr Ashland Mt, Mt
23 hours ago · USGS 06307830 |
151 cfs | 2.57 ft | 67°F | 55°F | 2,749 ft | Lower Tongue |
|
Milk River At Nashua Mt, Mt
23 hours ago · USGS 06174500 |
150 cfs | 1.81 ft | 68°F | 49°F | 2,036 ft | Lower Milk |
|
Clark Fork At Goldcreek Mt, Mt
23 hours ago · USGS 12324680 |
149 cfs | 4.15 ft | · | 40°F | 4,180 ft | Upper Clark Fork |
|
Sun River At Simms Mt, Mt
23 hours ago · USGS 06085800 |
144 cfs | 2.54 ft | 62°F | 47°F | 3,550 ft | Sun |
|
Two Medicine River Bl South Fork Nr Browning Mt, Mt
23 hours ago · USGS 06091700 |
136 cfs | 2.38 ft | · | 46°F | 4,153 ft | Two Medicine |
|
Musselshell River Near Roundup Mt, Mt
23 hours ago · USGS 06126500 |
135 cfs | 1.96 ft | · | 48°F | 3,191 ft | Upper Musselshell |
|
Milk River At Malta Mt, Mt
23 hours ago · USGS 06155500 |
126 cfs | 1.84 ft | · | 47°F | 2,224 ft | Middle Milk |
|
Milk River At Tampico Mt, Mt
23 hours ago · USGS 06172310 |
124 cfs | 2.65 ft | · | 47°F | 2,101 ft | Lower Milk |
|
Boulder River At Big Timber Mt, Mt
23 hours ago · USGS 06200000 |
118 cfs | 1.21 ft | · | 48°F | 4,069 ft | Upper Yellowstone |
|
Gardner River Near Mammoth Ynp, Mt
23 hours ago · USGS 06191000 |
114 cfs | 1.87 ft | · | 48°F | 5,632 ft | Yellowstone Headwaters |
|
Madison River Ab Powerplant Nr Mcallister Mt, Mt
23 hours ago · USGS 06040800 |
111 cfs | 3.16 ft | · | 52°F | 4,713 ft | Madison |
|
Tongue River At Tongue R Dam Nr Decker Mt, Mt
23 hours ago · USGS 06307500 |
109 cfs | 10.65 ft | 69°F | 48°F | 3,352 ft | Upper Tongue |
|
Ruby River Ab Reservoir Nr Alder Mt, Mt
22 hours ago · USGS 06019500 |
108 cfs | 2.95 ft | · | 46°F | 5,410 ft | Ruby |
|
North Fork Sun River Near Augusta Mt, Mt
23 hours ago · USGS 06078500 |
102 cfs | 3.41 ft | · | 43°F | 4,792 ft | Sun |
|
Clark Fork At Deer Lodge Mt, Mt
23 hours ago · USGS 12324200 |
102 cfs | 2.43 ft | 60°F | 42°F | 4,508 ft | Upper Clark Fork |
|
Flint Creek At Maxville Mt, Mt
22 hours ago · USGS 12329500 |
94 cfs | 2.36 ft | · | 48°F | 4,832 ft | Flint-Rock |
|
Smith River Near Eden Mt, Mt
22 hours ago · USGS 06077500 |
90 cfs | 2.72 ft | 66°F | 51°F | 3,500 ft | Smith |
|
Tongue R At Birney Day School Br Nr Birney Mt, Mt
23 hours ago · USGS 06307616 |
89 cfs | 1.00 ft | · | 55°F | 3,074 ft | Lower Tongue |
|
Yaak River Near Troy Mt, Mt
22 hours ago · USGS 12304500 |
88 cfs | 2.91 ft | · | 48°F | 1,846 ft | Lower Kootenai |
|
Smith River Bl Eagle Cr Nr Fort Logan Mt, Mt
23 hours ago · USGS 06077200 |
87 cfs | 2.97 ft | 58°F | 46°F | 4,354 ft | Smith |
|
Beaverhead River At Dillon Mt, Mt
23 hours ago · USGS 06017000 |
86 cfs | 3.32 ft | · | 44°F | 5,099 ft | Beaverhead |
|
Teton River Bl South Fork Nr Choteau Mt, Mt
22 hours ago · USGS 06102500 |
86 cfs | 4.38 ft | · | 49°F | 4,785 ft | Teton |
|
Warm Springs Creek Near Anaconda Mt, Mt
23 hours ago · USGS 12323760 |
85 cfs | 2.35 ft | · | 46°F | 5,131 ft | Upper Clark Fork |
|
South Fork Sun River Near Augusta Mt, Mt
23 hours ago · USGS 06079000 |
81 cfs | 1.13 ft | · | 43°F | 4,791 ft | Sun |
|
St. Regis River Near St. Regis, Mt
23 hours ago · USGS 12354000 |
80 cfs | 1.71 ft | · | 45°F | 2,662 ft | Middle Clark Fork |
|
Musselshell River At Musselshell Mt, Mt
23 hours ago · USGS 06127500 |
79 cfs | 2.17 ft | · | 48°F | 2,987 ft | Middle Musselshell |
|
Ruby River Near Twin Bridges Mt, Mt
22 hours ago · USGS 06023000 |
77 cfs | 2.46 ft | 61°F | 42°F | 4,667 ft | Ruby |
|
Little Bighorn River At State Line Nr Wyola Mt, Mt
22 hours ago · USGS 06289000 |
76 cfs | 2.04 ft | · | 60°F | 4,332 ft | Little Bighorn |
|
Soda Butte Cr At Park Bndry At Silver Gate, Mt
1 day ago · USGS 06187915 |
75 cfs | 1.19 ft | · | 39°F | 7,347 ft | Yellowstone Headwaters |
|
Badger Cr Bl Four Horns Canal Nr Browning Mt, Mt
23 hours ago · USGS 06093200 |
74 cfs | 4.27 ft | · | 47°F | 4,122 ft | Two Medicine |
|
Beaverhead River Near Twin Bridges Mt, Mt
23 hours ago · USGS 06018500 |
67 cfs | 3.49 ft | · | 42°F | 4,814 ft | Beaverhead |
|
Big Hole River Bl Mudd Cr Nr Wisdom Mt, Mt
23 hours ago · USGS 06024540 |
66 cfs | 2.59 ft | 77°F | 29°F | 5,894 ft | Big Hole |
|
Beaver Creek Near Hinsdale Mt, Mt
23 hours ago · USGS 06167500 |
65 cfs | 3.07 ft | · | 48°F | 2,143 ft | Beaver |
|
Fisher River Near Libby Mt, Mt
22 hours ago · USGS 12302055 |
65 cfs | 2.69 ft | · | 47°F | 2,142 ft | Fisher |
|
Powder River At Moorhead Mt, Mt
22 hours ago · USGS 06324500 |
58 cfs | 2.17 ft | · | 57°F | 3,350 ft | Middle Powder |
|
Clark Fork Near Galen Mt, Mt
23 hours ago · USGS 12323800 |
57 cfs | 1.88 ft | 58°F | 44°F | 4,753 ft | Upper Clark Fork |
|
Tongue River At State Line Nr Decker Mt, Mt
23 hours ago · USGS 06306300 |
55 cfs | 2.02 ft | 66°F | 47°F | 3,436 ft | Upper Tongue |
|
Smith River Near Ft Logan Mt, Mt
23 hours ago · USGS 06076690 |
54 cfs | 2.70 ft | · | 45°F | 4,402 ft | Smith |
|
Shields River Nr Livingston Mt, Mt
23 hours ago · USGS 06195600 |
53 cfs | · | · | 45°F | 4,419 ft | Shields |
|
Mission Cr Ab Reservoir Nr St Ignatius Mt, Mt
23 hours ago · USGS 12377150 |
52 cfs | 1.94 ft | · | 56°F | 3,517 ft | Lower Flathead |
|
Prospect Creek At Thompson Falls Mt, Mt
23 hours ago · USGS 12390700 |
51 cfs | · | · | 45°F | 2,424 ft | Lower Clark Fork |
|
Flint Creek Near Drummond Mt, Mt
23 hours ago · USGS 12331500 |
50 cfs | 1.99 ft | · | 37°F | 4,027 ft | Flint-Rock |
|
Hyalite C At Hyalite R S Nr Bozeman Mt, Mt
23 hours ago · USGS 06050000 |
49 cfs | 2.49 ft | · | 48°F | 5,557 ft | Gallatin |
|
Middle Fork Rock Cr Nr Philipsburg Mt, Mt
23 hours ago · USGS 12332000 |
47 cfs | 1.53 ft | · | 41°F | 5,450 ft | Flint-Rock |
|
Belt Creek Near Monarch Mt, Mt
23 hours ago · USGS 06090500 |
47 cfs | 2.24 ft | · | 54°F | 3,980 ft | Belt |
|
Red Lodge Cr Ab Cooney Re Nr Boyd Mt, Mt
23 hours ago · USGS 06211000 |
44 cfs | 1.98 ft | · | 50°F | 4,254 ft | Clarks Fork Yellowstone |
|
Swiftcurrent Creek At Many Glacier Mt, Mt
23 hours ago · USGS 05014500 |
43 cfs | 1.68 ft | · | 52°F | 4,881 ft | St. Mary |
|
Warm Springs Creek At Warm Springs Mt, Mt
22 hours ago · USGS 12323770 |
43 cfs | 3.12 ft | 54°F | 45°F | 4,818 ft | Upper Clark Fork |
|
Willow Creek Near Boyd Mt, Mt
23 hours ago · USGS 06211500 |
41 cfs | 2.87 ft | · | 50°F | 4,267 ft | Clarks Fork Yellowstone |
|
Tongue River At Miles City Mt, Mt
23 hours ago · USGS 06308500 |
37 cfs | 1.20 ft | 65°F | 51°F | 2,373 ft | Lower Tongue |
|
Little Blackfoot River Near Garrison Mt, Mt
23 hours ago · USGS 12324590 |
34 cfs | · | · | 41°F | 4,348 ft | Upper Clark Fork |
|
Musselshell River At Harlowton Mt, Mt
23 hours ago · USGS 06120500 |
31 cfs | 2.83 ft | · | 46°F | 4,175 ft | Upper Musselshell |
|
Flint Creek Near Southern Cross Mt, Mt
22 hours ago · USGS 12325500 |
31 cfs | · | · | 40°F | 5,594 ft | Flint-Rock |
|
Poplar River Near Poplar Mt, Mt
23 hours ago · USGS 06181000 |
29 cfs | 6.89 ft | · | 47°F | 1,960 ft | Poplar |
|
Little Prickly Pear Cr At Wolf Cr Mt, Mt
22 hours ago · USGS 06071300 |
28 cfs | 2.78 ft | · | 51°F | 3,561 ft | Upper Missouri |
|
South Fork Jocko River Near Arlee Mt, Mt
23 hours ago · USGS 12381400 |
26 cfs | 1.28 ft | · | 54°F | 4,032 ft | Lower Flathead |
|
Red Rock Cr Ab Lakes Nr Lakeview Mt, Mt
23 hours ago · USGS 06006000 |
23 cfs | 2.67 ft | 52°F | 42°F | 6,643 ft | Red Rock |
|
Boulder River Near Boulder Mt, Mt
23 hours ago · USGS 06033000 |
23 cfs | 4.99 ft | · | 50°F | 4,823 ft | Boulder |
|
Dearborn River Near Craig Mt, Mt
23 hours ago · USGS 06073500 |
22 cfs | 3.04 ft | 61°F | 49°F | 3,800 ft | Upper Missouri-Dearborn |
|
Little Bighorn River Near Hardin Mt, Mt
23 hours ago · USGS 06294000 |
22 cfs | 2.16 ft | · | 50°F | 2,894 ft | Little Bighorn |
|
Cut Bank Creek At Cut Bank Mt, Mt
23 hours ago · USGS 06099000 |
22 cfs | 1.65 ft | · | 45°F | 3,567 ft | Cut Bank |
|
Boulder Creek At Maxville Mt, Mt
23 hours ago · USGS 12330000 |
21 cfs | 1.27 ft | · | 48°F | 4,773 ft | Flint-Rock |
|
Big Sandy Creek Near Havre Mt, Mt
23 hours ago · USGS 06139500 |
16 cfs | 2.22 ft | · | 47°F | 2,505 ft | Big Sandy |
|
Red Rock R Bl Lima Reservoir Nr Monida Mt, Mt
23 hours ago · USGS 06012500 |
16 cfs | 1.34 ft | · | 47°F | 6,539 ft | Red Rock |
|
Silver Bow Creek At Opportunity Mt, Mt
23 hours ago · USGS 12323600 |
16 cfs | 1.81 ft | 58°F | 46°F | 4,917 ft | Upper Clark Fork |
|
Silver Bow Cr Bl Blacktail Cr At Butte Mt, Mt
23 hours ago · USGS 12323250 |
15 cfs | 1.23 ft | 59°F | 44°F | 5,426 ft | Upper Clark Fork |
|
Milk River Near Dodson Mt, Mt
23 hours ago · USGS 06155030 |
14 cfs | 3.23 ft | · | 46°F | 2,267 ft | Middle Milk |
|
Silver Bow Creek At Warm Springs Mt, Mt
23 hours ago · USGS 12323750 |
13 cfs | 1.76 ft | 59°F | 45°F | 4,805 ft | Upper Clark Fork |
|
Prickly Pear Creek Near Clancy Mt, Mt
23 hours ago · USGS 06061500 |
12 cfs | · | · | 47°F | 4,081 ft | Upper Missouri |
|
Lost Creek Near Galen, Mt
23 hours ago · USGS 12323850 |
11 cfs | 1.83 ft | 57°F | 44°F | 4,752 ft | Upper Clark Fork |
|
Musselshell River Ab Mud Cr Nr Shawmut Mt, Mt
23 hours ago · USGS 06123030 |
11 cfs | 2.54 ft | · | 48°F | 3,781 ft | Upper Musselshell |
|
Musselshell River Nr Martinsdale, Mt
23 hours ago · USGS 06119600 |
10 cfs | 1.17 ft | · | 44°F | 4,668 ft | Upper Musselshell |
|
Musselshell River At Mosby Mt, Mt
22 hours ago · USGS 06130500 |
8 cfs | 1.80 ft | · | 51°F | 2,497 ft | Lower Musselshell |
|
Big Hole River Bl Big Lake Cr At Wisdom Mt, Mt
22 hours ago · USGS 06024450 |
7 cfs | 1.86 ft | 59°F | 25°F | 6,048 ft | Big Hole |
|
Willow Creek Near Harrison Mt, Mt
23 hours ago · USGS 06035000 |
6 cfs | 1.05 ft | 56°F | 48°F | 4,760 ft | Jefferson |
|
Big Muddy Cr Nr Mouth Nr Culbertson Mt, Mt
23 hours ago · USGS 06185110 |
6 cfs | 4.09 ft | · | 47°F | 1,917 ft | Big Muddy |
|
N F Milk River Ab St Mary Ca Nr Browning Mt, Mt
23 hours ago · USGS 06133500 |
5 cfs | 1.59 ft | · | 45°F | 4,226 ft | Milk Headwaters |
|
Teton River At Loma Mt, Mt
23 hours ago · USGS 06108800 |
5 cfs | · | · | 50°F | 2,570 ft | Marias |
|
Willow Creek At Opportunity, Mt
23 hours ago · USGS 12323720 |
5 cfs | 3.88 ft | 54°F | 45°F | 4,924 ft | Upper Clark Fork |
|
Mill Creek At Opportunity, Mt
23 hours ago · USGS 12323700 |
2 cfs | 2.14 ft | 55°F | 45°F | 4,938 ft | Upper Clark Fork |
|
Tenmile Creek Near Helena Mt, Mt
1 day ago · USGS 06063000 |
2 cfs | 2.11 ft | · | 51°F | 3,962 ft | Upper Missouri |
|
Big Muddy Creek Near Antelope Mt, Mt
23 hours ago · USGS 06183450 |
2 cfs | 1.13 ft | · | 47°F | 1,972 ft | Big Muddy |
|
Tenmile Creek Near Rimini Mt, Mt
22 hours ago · USGS 06062500 |
1 cfs | 1.11 ft | · | 50°F | 4,852 ft | Upper Missouri |
|
Battle Creek Near Chinook Mt, Mt
23 hours ago · USGS 06151500 |
0 cfs | · | · | 47°F | 2,411 ft | Battle |
|
Clear Creek Near Chinook Mt, Mt
23 hours ago · USGS 06142400 |
0 cfs | 1.31 ft | · | 48°F | 2,465 ft | Middle Milk |
|
Nelson Creek Near Van Norman Mt, Mt
23 hours ago · USGS 06131200 |
0 cfs | 2.24 ft | · | 50°F | 2,297 ft | Fort Peck Reservoir |
|
Powder River Near Locate Mt, Mt
23 hours ago · USGS 06326500 |
0 cfs | · | 52°F | 51°F | 2,398 ft | Lower Powder |
|
Poplar River At International Boundary, Mt
23 hours ago · USGS 06178000 |
0 cfs | 2.25 ft | · | 43°F | 2,465 ft | Poplar |
|
Rock Cr Bl Horse Cr Nr Int Bndry, Mt
23 hours ago · USGS 06169500 |
0 cfs | 2.35 ft | · | 42°F | 2,525 ft | Rock |
|
Redwater River At Circle Mt, Mt
23 hours ago · USGS 06177500 |
0 cfs | 3.65 ft | · | 48°F | 2,404 ft | Redwater |
|
Flatwillow Creek Near Mosby Mt, Mt
23 hours ago · USGS 06130000 |
0 cfs | 3.84 ft | · | 50°F | 2,554 ft | Lower Musselshell |
|
Peoples Creek Near Hays Mt, Mt
23 hours ago · USGS 06154400 |
0 cfs | 2.66 ft | · | 50°F | 2,714 ft | Peoples |
|
Rosebud C At Reservation Bndry Nr Kirby Mt, Mt
22 hours ago · USGS 06295113 |
0 cfs | 2.94 ft | · | 55°F | 3,776 ft | Rosebud |
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See every Montana gauge ranked against normal.
- Percentile rank & % of median for all 171 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
Whitewater & paddle
Montana river runs
Paddleable river sections in Montana keyed to USGS gauges, with live streamflow and whitewater class.
| River run | Status | Streamflow | Air temp | Class |
|---|---|---|---|---|
| Alberton Gorge (St. John To Forrest Grove) | · | · | 33°F | III TO IV |
| Bear Creek To Essex | Runnable | 445 cfs | 55°F | II TO III+ |
| Beartrap Canyon - Madison Dam To Route 84 | Runnable | 1,030 cfs | 46°F | III TO IV |
| Bible Run | Runnable | 529 cfs | 54°F | III TO IV |
| Big Creek To Glacier Rim | Runnable | 1,380 cfs | 47°F | III- TO III |
| Border To Polebridge | Too Low | 432 cfs | 45°F | II TO II+ |
| Camp Baker To Eden Bridge | Runnable | 1,970 cfs | 41°F | II TO II+ |
| Essex To Moccasin Creek | Runnable | 1,290 cfs | 49°F | II+ |
| Gardiner Town Run | Runnable | 1,080 cfs | 43°F | III- TO III+ |
| Glacier Rim To Blankenship Bridge And Confluence | Runnable | 4,590 cfs | 49°F | II |
| Missoula Town Run | Runnable | 958 cfs | 49°F | II TO II+ |
| Moccasin Creek To West Glacier (John Stevens Canyon) | Runnable | 4,310 cfs | 53°F | II+ TO III+ |
| Moose To Storm Castle | Runnable | 308 cfs | 51°F | III+ TO IV+ |
| Polebridge To Big Creek | Runnable | 4,590 cfs | 49°F | II TO III- |
| Schafer Meadows To Bear Creek (Upper) | Runnable | 4,310 cfs | 53°F | III+ TO IV+ |
| West Glacier To Blankenship Bridge | Runnable | 4,310 cfs | 53°F | II+ TO III |
| Yankee Jim Canyon (Joe Brown To Miner) | Runnable | 1,080 cfs | 43°F | III TO III+ |
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See when every Montana run is runnable.
- Runnable-window alerts on every river run
- 15-day PULSE flow forecast per run
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Flow report FAQ
About Montana streamflow
What are river levels like in Montana right now?
As of September 2, 2026, Montana rivers are running at 89% of normal across 171 USGS streamgauges, and the Kootenai River Bl Libby Dam Nr Libby Mt is reporting the highest discharge at 9,140 cfs. The full sortable gauge table is below.
Which Montana river is running highest right now?
As of September 2, 2026, the highest discharge in Montana is 9,140 cfs on the Kootenai River Bl Libby Dam Nr Libby Mt. See the sortable gauge table for the full statewide ranking.
Are Montana rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Montana rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the Montana streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Montana data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Montana gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
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