Flow report
Illinois streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Illinois. Built for paddlers, anglers, water managers, and flood researchers.
USGS gauges
153
State percent normal
100%
Paddle runs
0
Updated
Jul 18
Open the Illinois flow layer on the map
Every USGS streamgauge filtered to Illinois.
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July
18
2026
Flow briefing
Streamflow levels across Illinois are currently 100% of normal, with the Mississippi River At Thebes reporting the highest discharge in the state at 324,000 cfs and a gauge stage of 24.33 ft.
Meanwhile, the Kaskaskia River At Vandalia is seeing a spike today — up 10% 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 Illinois's named rivers.
River levels near Illinois towns
Illinois at a glance
State-wide streamflow overview
The Illinois 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
100%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Thebes
324,000 cfs
Gauge stage 24.33 ft
Biggest 24h spike
Kaskaskia River At Vandalia
+10%
Now 2,020 cfs
Network coverage
Gauges + rivers tracked
153 + 0
USGS gauges feeding 0 named rivers in Illinois.
Full streamgauge inventory
Illinois USGS streamgauges
Every USGS gauge Snoflo tracks in Illinois. 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 |
|---|---|---|---|---|---|---|
|
Mississippi River At Thebes, Il
23 hours ago · USGS 07022000 |
285,000 cfs | 22.20 ft | · | 73°F | 321 ft | Upper Mississippi-Cape Girardeau |
|
Mississippi River At Chester, Il
23 hours ago · USGS 07020500 |
255,000 cfs | 17.49 ft | · | 75°F | 358 ft | Upper Mississippi-Cape Girardeau |
|
Illinois River At Valley City, Il
1 day ago · USGS 05586100 |
43,700 cfs | 11.93 ft | · | 73°F | 433 ft | Lower Illinois |
|
Illinois River At Kingston Mines, Il
23 hours ago · USGS 05568500 |
29,000 cfs | 13.48 ft | · | 73°F | 441 ft | Lower Illinois-Lake Chautauqua |
|
Wabash River At Mt. Carmel, Il
22 hours ago · USGS 03377500 |
21,700 cfs | 7.32 ft | · | 74°F | 391 ft | Lower Wabash |
|
Illinois River At Henry, Il
23 hours ago · USGS 05558300 |
14,100 cfs | 17.62 ft | 86°F | 72°F | 440 ft | Lower Illinois-Senachwine Lake |
|
Illinois River At Marseilles, Il
23 hours ago · USGS 05543500 |
7,890 cfs | 12.27 ft | · | 72°F | 459 ft | Upper Illinois |
|
Rock River Near Joslin, Il
23 hours ago · USGS 05446500 |
5,340 cfs | 6.09 ft | 34°F | 72°F | 588 ft | Lower Rock |
|
Rock River At Como, Il
23 hours ago · USGS 05443500 |
4,860 cfs | 4.12 ft | · | 71°F | 618 ft | Lower Rock |
|
Rock River At Byron, Il
1 day ago · USGS 05440700 |
4,420 cfs | 6.15 ft | 86°F | 70°F | 677 ft | Lower Rock |
|
Big Muddy River At Rte 127 At Murphysboro, Il
1 day ago · USGS 05599490 |
4,180 cfs | 14.24 ft | 81°F | 76°F | 357 ft | Big Muddy |
|
Rock River At Rockton, Il
1 day ago · USGS 05437500 |
3,830 cfs | 4.23 ft | · | 69°F | 712 ft | Lower Rock |
|
Kankakee River Near Wilmington, Il
23 hours ago · USGS 05527500 |
3,200 cfs | 1.86 ft | 83°F | 71°F | 511 ft | Kankakee |
|
Sangamon River Near Oakford, Il
23 hours ago · USGS 05583000 |
2,970 cfs | 6.15 ft | 81°F | 73°F | 457 ft | Lower Sangamon |
|
Kaskaskia River At New Athens, Il
1 day ago · USGS 05595000 |
2,880 cfs | 69.10 ft | 73°F | 73°F | 403 ft | Lower Kaskaskia |
|
Kaskaskia River Near Venedy Station, Il
1 day ago · USGS 05594100 |
2,750 cfs | 8.83 ft | · | 73°F | 395 ft | Lower Kaskaskia |
|
Kaskaskia River At Vandalia, Il
1 day ago · USGS 05592500 |
2,420 cfs | 10.03 ft | · | 73°F | 537 ft | Middle Kaskaskia |
|
Kaskaskia River At Carlyle, Il
1 day ago · USGS 05593000 |
2,290 cfs | 12.17 ft | · | 73°F | 413 ft | Middle Kaskaskia |
|
Kankakee River At Momence, Il
23 hours ago · USGS 05520500 |
2,270 cfs | 2.46 ft | · | 71°F | 610 ft | Kankakee |
|
Kaskaskia River Near Cowden, Il
1 day ago · USGS 05592100 |
1,830 cfs | 8.46 ft | · | 71°F | 553 ft | Upper Kaskaskia |
|
Pecatonica River Nr Shirland, Il
1 day ago · USGS 05437050 |
1,750 cfs | 5.45 ft | · | 69°F | 718 ft | Pecatonica |
|
Kaskaskia River At Shelbyville, Il
1 day ago · USGS 05592000 |
1,750 cfs | 11.44 ft | · | 72°F | 568 ft | Upper Kaskaskia |
|
Sangamon River At Petersburg, Il
1 day ago · USGS 05578000 |
1,710 cfs | 6.88 ft | 79°F | 72°F | 489 ft | Lower Sangamon |
|
Cache River At Forman, Il
1 day ago · USGS 03612000 |
1,560 cfs | 19.56 ft | · | 72°F | 367 ft | Lower Ohio |
|
Fox River At Dayton, Il
23 hours ago · USGS 05552500 |
1,510 cfs | 6.33 ft | · | 72°F | 472 ft | Lower Fox |
|
Sangamon River At Riverton, Il
23 hours ago · USGS 05576500 |
1,300 cfs | 6.39 ft | · | 73°F | 519 ft | Lower Sangamon |
|
Cahokia Creek At Edwardsville, Il
1 day ago · USGS 05587900 |
1,300 cfs | 7.51 ft | · | 73°F | 456 ft | Cahokia-Joachim |
|
Little Wabash River At Carmi, Il
1 day ago · USGS 03381500 |
1,190 cfs | 6.24 ft | · | 73°F | 419 ft | Little Wabash |
|
Embarras River At Lawrenceville, Il
23 hours ago · USGS 03346500 |
1,080 cfs | 19.19 ft | 61°F | 74°F | 424 ft | Embarras |
|
Salt Creek Near Greenview, Il
23 hours ago · USGS 05582000 |
975 cfs | 2.68 ft | 83°F | 72°F | 481 ft | Salt |
|
Pecatonica River At Freeport, Il
1 day ago · USGS 05435500 |
973 cfs | 5.31 ft | · | 70°F | 754 ft | Pecatonica |
|
Fox River At Montgomery, Il
1 day ago · USGS 05551540 |
715 cfs | 11.29 ft | · | 70°F | 613 ft | Lower Fox |
|
Spoon River At Seville, Il
23 hours ago · USGS 05570000 |
701 cfs | 7.01 ft | 53°F | 73°F | 498 ft | Spoon |
|
Fox River At South Elgin, Il
23 hours ago · USGS 05551000 |
678 cfs | 12.37 ft | · | 70°F | 696 ft | Lower Fox |
|
Mackinaw River Near Green Valley, Il
23 hours ago · USGS 05568000 |
658 cfs | 14.73 ft | 75°F | 73°F | 501 ft | Mackinaw |
|
Kishwaukee River Near Perryville, Il
1 day ago · USGS 05440000 |
657 cfs | 6.20 ft | · | 70°F | 701 ft | Kishwaukee |
|
Embarras River At Ste. Marie, Il
23 hours ago · USGS 03345500 |
595 cfs | 3.38 ft | · | 74°F | 499 ft | Embarras |
|
Fox River At Algonquin (Tailwater), Il
1 day ago · USGS 05550001 |
553 cfs | 5.04 ft | 32°F | 69°F | 727 ft | Upper Fox |
|
Green River Near Geneseo, Il
1 day ago · USGS 05447500 |
552 cfs | 3.90 ft | 58°F | 72°F | 586 ft | Green |
|
Vermilion River Near Danville, Il
1 day ago · USGS 03339000 |
511 cfs | 3.50 ft | 64°F | 73°F | 517 ft | Vermilion |
|
Spoon River At London Mills, Il
23 hours ago · USGS 05569500 |
478 cfs | 3.57 ft | 71°F | 72°F | 557 ft | Spoon |
|
Du Page River At Shorewood, Il
23 hours ago · USGS 05540500 |
462 cfs | 10.77 ft | · | 71°F | 566 ft | Des Plaines |
|
Vermilion River Near Leonore, Il
23 hours ago · USGS 05555300 |
456 cfs | 4.43 ft | 76°F | 72°F | 535 ft | Vermilion |
|
Mackinaw River Near Congerville, Il
23 hours ago · USGS 05567500 |
396 cfs | 2.21 ft | 47°F | 72°F | 611 ft | Mackinaw |
|
Iroquois River Near Chebanse, Il
23 hours ago · USGS 05526000 |
374 cfs | 3.27 ft | · | 72°F | 600 ft | Iroquois |
|
Sangamon River At Rt 48 At Decatur, Il
23 hours ago · USGS 05573540 |
303 cfs | 3.88 ft | 75°F | 72°F | 618 ft | Upper Sangamon |
|
La Moine River At Ripley, Il
23 hours ago · USGS 05585000 |
283 cfs | 6.08 ft | · | 72°F | 467 ft | La Moine |
|
Big Muddy River At Plumfield, Il
1 day ago · USGS 05597000 |
280 cfs | 5.07 ft | · | 73°F | 379 ft | Big Muddy |
|
Des Plaines River At Riverside, Il
23 hours ago · USGS 05532500 |
263 cfs | 1.97 ft | · | 76°F | 598 ft | Des Plaines |
|
Kishwaukee River At Belvidere, Il
1 day ago · USGS 05438500 |
262 cfs | 1.67 ft | · | 69°F | 740 ft | Kishwaukee |
|
Sangamon River At Monticello, Il
1 day ago · USGS 05572000 |
258 cfs | 6.76 ft | 77°F | 72°F | 646 ft | Upper Sangamon |
|
Big Bureau Creek At Princeton, Il
23 hours ago · USGS 05556500 |
235 cfs | 3.09 ft | · | 71°F | 603 ft | Lower Illinois-Senachwine Lake |
|
Edwards River Near New Boston, Il
1 day ago · USGS 05466500 |
228 cfs | 13.77 ft | · | 73°F | 561 ft | Flint-Henderson |
|
South Branch Kishwaukee River Nr Fairdale Il, Il
23 hours ago · USGS 05439500 |
220 cfs | 2.49 ft | · | 70°F | 736 ft | Kishwaukee |
|
Bonpas Creek At Browns, Il
23 hours ago · USGS 03378000 |
217 cfs | 4.38 ft | · | 73°F | 451 ft | Lower Wabash |
|
Des Plaines River Near Des Plaines, Il
23 hours ago · USGS 05529000 |
217 cfs | 8.87 ft | · | 76°F | 625 ft | Des Plaines |
|
Henderson Creek Near Oquawka, Il
1 day ago · USGS 05469000 |
198 cfs | 14.35 ft | · | 73°F | 611 ft | Flint-Henderson |
|
Little Wabash River Below Clay City, Il
1 day ago · USGS 03379500 |
189 cfs | 6.41 ft | · | 73°F | 477 ft | Little Wabash |
|
Salt Creek Near Rowell, Il
1 day ago · USGS 05578500 |
161 cfs | 10.84 ft | 77°F | 72°F | 634 ft | Salt |
|
South Fork Saline River Nr Carrier Mills, Il
1 day ago · USGS 03382100 |
158 cfs | 3.73 ft | · | 73°F | 415 ft | Saline |
|
South Fork Sangamon River Nr Rochester, Il
23 hours ago · USGS 05576000 |
146 cfs | 7.64 ft | 75°F | 73°F | 518 ft | South Fork Sangamon |
|
Vermilion River At Pontiac, Il
23 hours ago · USGS 05554500 |
140 cfs | 3.41 ft | 76°F | 72°F | 661 ft | Vermilion |
|
Des Plaines River Near Gurnee, Il
1 day ago · USGS 05528000 |
125 cfs | 2.37 ft | · | 70°F | 664 ft | Des Plaines |
|
Little Calumet River At South Holland, Il
23 hours ago · USGS 05536290 |
113 cfs | 6.05 ft | · | 74°F | 596 ft | Chicago |
|
Apple River Near Hanover, Il
1 day ago · USGS 05419000 |
107 cfs | 4.17 ft | · | 72°F | 596 ft | Apple-Plum |
|
Kaskaskia River At Cooks Mills, Il
1 day ago · USGS 05591200 |
106 cfs | 2.89 ft | · | 72°F | 641 ft | Upper Kaskaskia |
|
La Moine River At Colmar, Il
23 hours ago · USGS 05584500 |
104 cfs | 4.37 ft | · | 73°F | 511 ft | La Moine |
|
Middle Fork Vermilion River Above Oakwood, Il
23 hours ago · USGS 03336645 |
99 cfs | 1.26 ft | · | 73°F | 560 ft | Vermilion |
|
East Branch Du Page River At Bolingbrook, Il
23 hours ago · USGS 05540250 |
89 cfs | 14.97 ft | · | 73°F | 640 ft | Des Plaines |
|
Sangamon River At Fisher, Il
1 day ago · USGS 05570910 |
87 cfs | 5.98 ft | 82°F | 72°F | 693 ft | Upper Sangamon |
|
Salt Creek At Western Springs, Il
23 hours ago · USGS 05531500 |
85 cfs | 1.71 ft | · | 75°F | 634 ft | Des Plaines |
|
Kickapoo Creek At Waynesville, Il
1 day ago · USGS 05580000 |
85 cfs | 3.09 ft | · | 72°F | 635 ft | Salt |
|
West Branch Du Page River Near Naperville, Il
1 day ago · USGS 05540130 |
80 cfs | 4.30 ft | · | 72°F | 637 ft | Des Plaines |
|
Lake Fork Near Cornland, Il
1 day ago · USGS 05579500 |
78 cfs | 4.36 ft | · | 73°F | 569 ft | Salt |
|
Nippersink Creek Near Spring Grove, Il
1 day ago · USGS 05548280 |
77 cfs | 4.02 ft | · | 68°F | 754 ft | Upper Fox |
|
Elkhorn Creek Near Penrose, Il
23 hours ago · USGS 05444000 |
76 cfs | 3.03 ft | · | 70°F | 669 ft | Lower Rock |
|
Little Crooked Creek Near New Minden, Il
1 day ago · USGS 05593575 |
76 cfs | 8.32 ft | · | 73°F | 485 ft | Middle Kaskaskia |
|
Silver Creek Near Freeburg, Il
1 day ago · USGS 05594800 |
75 cfs | · | · | 73°F | 418 ft | Lower Kaskaskia |
|
North Fork Embarras River Near Oblong, Il
1 day ago · USGS 03346000 |
73 cfs | 3.83 ft | · | 74°F | 498 ft | Embarras |
|
Iroquois River At Iroquois, Il
1 day ago · USGS 05525000 |
68 cfs | 4.94 ft | · | 71°F | 638 ft | Iroquois |
|
Thorn Creek At Thornton, Il
23 hours ago · USGS 05536275 |
67 cfs | 3.14 ft | · | 73°F | 603 ft | Chicago |
|
Blackberry Creek Near Yorkville, Il
1 day ago · USGS 05551700 |
65 cfs | 3.92 ft | · | 70°F | 617 ft | Lower Fox |
|
Shoal Creek Nr Pierron, Il
1 day ago · USGS 05593945 |
65 cfs | 43.21 ft | · | 73°F | 465 ft | Shoal |
|
Shoal Creek Near Breese, Il
1 day ago · USGS 05594000 |
63 cfs | 1.42 ft | · | 73°F | 456 ft | Shoal |
|
Salt Fork Near St. Joseph, Il
23 hours ago · USGS 03336900 |
61 cfs | 3.40 ft | · | 72°F | 661 ft | Vermilion |
|
Sugar Creek At Milford, Il
1 day ago · USGS 05525500 |
60 cfs | 3.47 ft | · | 72°F | 644 ft | Iroquois |
|
Hickory Creek At Joliet, Il
1 day ago · USGS 05539000 |
55 cfs | 10.84 ft | · | 72°F | 535 ft | Des Plaines |
|
Blackberry Creek Near Montgomery, Il
1 day ago · USGS 05551675 |
55 cfs | 3.96 ft | · | 70°F | 661 ft | Lower Fox |
|
Pope Creek Near Keithsburg, Il
1 day ago · USGS 05467000 |
55 cfs | 19.60 ft | · | 73°F | 550 ft | Flint-Henderson |
|
Salt Creek At Elmhurst, Il
1 day ago · USGS 05531300 |
55 cfs | 5.13 ft | · | 74°F | 670 ft | Des Plaines |
|
E Br Du Page River Near Downers Grove, Il
1 day ago · USGS 05540160 |
53 cfs | 12.08 ft | · | 73°F | 675 ft | Des Plaines |
|
Mazon River Near Coal City, Il
23 hours ago · USGS 05542000 |
52 cfs | 1.54 ft | · | 72°F | 529 ft | Upper Illinois |
|
Sugar Creek Near Bloomington, Il
1 day ago · USGS 05580950 |
46 cfs | 1.11 ft | · | 72°F | 749 ft | Salt |
|
Embarras River Near Camargo, Il
1 day ago · USGS 03343400 |
44 cfs | 3.46 ft | · | 72°F | 644 ft | Embarras |
|
Thorn Creek At Glenwood, Il
1 day ago · USGS 05536215 |
43 cfs | 2.67 ft | · | 72°F | 628 ft | Chicago |
|
West Br Du Page River Near Warrenville, Il
1 day ago · USGS 05540095 |
43 cfs | 7.75 ft | · | 72°F | 688 ft | Des Plaines |
|
Indian Creek Near Wyoming, Il
1 day ago · USGS 05568800 |
39 cfs | 9.81 ft | · | 72°F | 623 ft | Spoon |
|
Sinsinawa River Near Menominee, Il
1 day ago · USGS 05414820 |
34 cfs | 4.83 ft | · | 72°F | 645 ft | Apple-Plum |
|
Tyler Creek At Elgin, Il
23 hours ago · USGS 05550300 |
31 cfs | 5.96 ft | · | 70°F | 751 ft | Upper Fox |
|
South Branch Kishwaukee River At Dekalb, Il
1 day ago · USGS 05439000 |
30 cfs | 3.34 ft | · | 70°F | 846 ft | Kishwaukee |
|
Spring Creek At Springfield, Il
1 day ago · USGS 05577500 |
30 cfs | 2.42 ft | · | 73°F | 529 ft | Lower Sangamon |
|
Ferson Creek Near St. Charles, Il
1 day ago · USGS 05551200 |
29 cfs | 1.71 ft | · | 70°F | 709 ft | Lower Fox |
|
Lake Fork At Atwood, Il
1 day ago · USGS 05590800 |
27 cfs | 2.45 ft | · | 72°F | 661 ft | Upper Kaskaskia |
|
Macoupin Creek Near Kane, Il
1 day ago · USGS 05587000 |
26 cfs | 4.16 ft | · | 72°F | 445 ft | Macoupin |
|
North Branch Chicago River At Niles, Il
1 day ago · USGS 05536000 |
24 cfs | · | · | 74°F | 608 ft | Chicago |
|
W Branch Du Page River Nr West Chicago, Il
23 hours ago · USGS 05539900 |
24 cfs | 3.83 ft | · | 71°F | 723 ft | Des Plaines |
|
West Okaw River Near Lovington, Il
1 day ago · USGS 05591700 |
23 cfs | 4.16 ft | · | 72°F | 639 ft | Upper Kaskaskia |
|
Mill Creek At Milan, Il
1 day ago · USGS 05448000 |
22 cfs | 1.86 ft | · | 73°F | 574 ft | Lower Rock |
|
Flag Creek Near Willow Springs, Il
1 day ago · USGS 05533000 |
20 cfs | 3.38 ft | · | 75°F | 610 ft | Des Plaines |
|
Addison Creek At Bellwood, Il
1 day ago · USGS 05532000 |
20 cfs | 1.69 ft | · | 75°F | 627 ft | Des Plaines |
|
Skillet Fork At Wayne City, Il
1 day ago · USGS 03380500 |
18 cfs | 5.10 ft | · | 73°F | 387 ft | Skillet |
|
Richland Creek Near Hecker, Il
1 day ago · USGS 05595200 |
18 cfs | 27.53 ft | · | 73°F | 403 ft | Lower Kaskaskia |
|
Mill Creek Near Batavia, Il
1 day ago · USGS 05551330 |
17 cfs | 2.46 ft | · | 70°F | 690 ft | Lower Fox |
|
Hurricane Creek Near Mulberry Grove, Il
1 day ago · USGS 05592800 |
17 cfs | 3.65 ft | · | 73°F | 551 ft | Middle Kaskaskia |
|
Little Wabash River Near Effingham, Il
1 day ago · USGS 03378635 |
16 cfs | 10.58 ft | · | 72°F | 542 ft | Little Wabash |
|
Silver Creek Near Troy, Il
1 day ago · USGS 05594450 |
15 cfs | 4.33 ft | · | 74°F | 491 ft | Lower Kaskaskia |
|
Mill Creek At Old Mill Creek, Il
1 day ago · USGS 05527950 |
14 cfs | 6.11 ft | · | 69°F | 677 ft | Des Plaines |
|
Hickory Creek Nr Brownstown, Il
1 day ago · USGS 05592575 |
13 cfs | 4.92 ft | · | 73°F | 507 ft | Middle Kaskaskia |
|
Bear Creek Near Marcelline, Il
1 day ago · USGS 05495500 |
13 cfs | 2.53 ft | · | 73°F | 523 ft | Bear-Wyaconda |
|
Farm Creek At Farmdale, Il
1 day ago · USGS 05560500 |
11 cfs | 1.00 ft | · | 73°F | 541 ft | Lower Illinois-Senachwine Lake |
|
St. Joseph Creek At U.S. Route 34 At Lisle, Il
1 day ago · USGS 05540195 |
10 cfs | 4.45 ft | · | 73°F | 673 ft | Des Plaines |
|
Spring Brook At 87th Street Near Naperville, Il
23 hours ago · USGS 05540275 |
10 cfs | 3.05 ft | · | 72°F | 652 ft | Des Plaines |
|
Kress Creek At West Chicago, Il
1 day ago · USGS 05540060 |
10 cfs | 4.22 ft | · | 71°F | 706 ft | Des Plaines |
|
Nippersink Creek Above Wonder Lake, Il
23 hours ago · USGS 05548105 |
10 cfs | 4.62 ft | · | 68°F | 806 ft | Upper Fox |
|
Deer Creek Near Chicago Heights, Il
1 day ago · USGS 05536235 |
9 cfs | 3.32 ft | · | 72°F | 628 ft | Chicago |
|
Whitley Creek Near Allenville, Il
1 day ago · USGS 05591550 |
8 cfs | 2.78 ft | · | 72°F | 625 ft | Upper Kaskaskia |
|
Lusk Creek Near Eddyville, Il
23 hours ago · USGS 03384450 |
8 cfs | 2.75 ft | · | 72°F | 388 ft | Lower Ohio-Bay |
|
Robinson Creek Near Shelbyville, Il
1 day ago · USGS 05592050 |
7 cfs | 1.84 ft | · | 72°F | 616 ft | Upper Kaskaskia |
|
Poplar Creek At Elgin, Il
1 day ago · USGS 05550500 |
7 cfs | 1.16 ft | · | 70°F | 730 ft | Upper Fox |
|
Skokie River Near Highland Park, Il
23 hours ago · USGS 05535070 |
7 cfs | 2.70 ft | · | 73°F | 632 ft | Chicago |
|
East Fork Shoal Creek Near Coffeen, Il
1 day ago · USGS 05593900 |
6 cfs | 2.14 ft | · | 72°F | 590 ft | Shoal |
|
Butterfield Creek At Flossmoor, Il
1 day ago · USGS 05536255 |
6 cfs | 4.07 ft | · | 75°F | 635 ft | Chicago |
|
North Branch Chicago River At Deerfield, Il
23 hours ago · USGS 05534500 |
6 cfs | 4.40 ft | · | 73°F | 642 ft | Chicago |
|
Boone Creek Near Mc Henry, Il
23 hours ago · USGS 05549000 |
5 cfs | 1.03 ft | · | 69°F | 779 ft | Upper Fox |
|
Des Plaines River At Russell, Il
1 day ago · USGS 05527800 |
5 cfs | 3.43 ft | · | 68°F | 667 ft | Des Plaines |
|
Long Run Near Lemont, Il
1 day ago · USGS 05537500 |
5 cfs | · | · | 73°F | 641 ft | Des Plaines |
|
Wf Of Nb Chicago River At Northbrook Il, Il
1 day ago · USGS 05535500 |
4 cfs | · | · | 73°F | 653 ft | Chicago |
|
Salt Creek At Rolling Meadows, Il
23 hours ago · USGS 05530990 |
4 cfs | 2.19 ft | · | 73°F | 694 ft | Des Plaines |
|
Rayse Creek Near Waltonville, Il
1 day ago · USGS 05595730 |
4 cfs | 1.21 ft | · | 74°F | 424 ft | Big Muddy |
|
Casey Fork At Mount Vernon, Il
1 day ago · USGS 05595820 |
3 cfs | 1.55 ft | · | 73°F | 441 ft | Big Muddy |
|
East Fork Kaskaskia River Near Sandoval, Il
1 day ago · USGS 05592900 |
3 cfs | 2.86 ft | · | 74°F | 491 ft | Middle Kaskaskia |
|
Crab Orchard Creek Near Marion, Il
1 day ago · USGS 05597500 |
3 cfs | · | · | 73°F | 430 ft | Big Muddy |
|
Sawmill Creek Near Lemont, Il
1 day ago · USGS 05533400 |
3 cfs | 8.35 ft | · | 74°F | 647 ft | Des Plaines |
|
Boneyard Creek At Urbana, Il
1 day ago · USGS 03337000 |
2 cfs | 10.29 ft | · | 72°F | 717 ft | Vermilion |
|
Indian Creek At Wanda, Il
1 day ago · USGS 05588000 |
2 cfs | · | · | 73°F | 447 ft | Cahokia-Joachim |
|
Boneyard Creek At Lincoln Ave At Urbana, Il
23 hours ago · USGS 03337100 |
2 cfs | 7.48 ft | · | 72°F | 714 ft | Vermilion |
|
Tinley Creek Near Palos Park, Il
23 hours ago · USGS 05536500 |
2 cfs | 2.49 ft | · | 75°F | 608 ft | Chicago |
|
Buffalo Creek Near Wheeling, Il
1 day ago · USGS 05528500 |
1 cfs | 1.41 ft | · | 72°F | 667 ft | Des Plaines |
|
Midlothian Creek At Oak Forest, Il
1 day ago · USGS 05536340 |
1 cfs | 1.51 ft | · | 74°F | 629 ft | Chicago |
|
Weller Creek At Des Plaines, Il
1 day ago · USGS 05530000 |
1 cfs | · | · | 74°F | 648 ft | Des Plaines |
|
Skokie River At Lake Forest, Il
23 hours ago · USGS 05535000 |
1 cfs | 1.84 ft | · | 72°F | 664 ft | Chicago |
|
Mc Donald Creek Near Mount Prospect, Il
23 hours ago · USGS 05529500 |
0 cfs | · | · | 73°F | 641 ft | Des Plaines |
|
Fondulac Creek Near East Peoria, Il
23 hours ago · USGS 05561500 |
0 cfs | 1.37 ft | · | 73°F | 521 ft | Lower Illinois-Senachwine Lake |
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Flow report FAQ
About Illinois streamflow
Where does the Illinois 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 Illinois 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 Illinois 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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