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
107%
Paddle runs
0
Updated
Jul 16
Open the Illinois flow layer on the map
Every USGS streamgauge filtered to Illinois.
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July
16
2026
Flow briefing
Streamflow levels across Illinois are currently 107% of normal, with the Mississippi River At Thebes reporting the highest discharge in the state at 338,000 cfs and a gauge stage of 25.00 ft.
Meanwhile, the Sangamon River At Rt 48 At Decatur is seeing a spike today — up 3% 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
Active weather warnings for Illinois
# Illinois Natural Disaster Report
Illinois residents, particularly those in northern regions including Chicago, Rockford, and surrounding areas, face dual threats requiring immediate attention. A Red Forecast Air Pollution Action Day is in effect through July 17th due to Canadian wildfire smoke creating unhealthy air quality conditions. Vulnerable populations—children, elderly, and those with respiratory conditions—should avoid prolonged outdoor activities. Simultaneously, the Illinois River at Beardstown and near Havana is experiencing minor flooding affecting Schuyler, Brown, Cass, Mason, and Fulton Counties, with water levels expected to remain elevated through Saturday-Sunday before receding. Residents should monitor AirNow.gov for real-time air quality updates and heed flood warnings in central Illinois river communities through mid-week.
Illinois residents, particularly those in northern regions including Chicago, Rockford, and surrounding areas, face dual threats requiring immediate attention. A Red Forecast Air Pollution Action Day is in effect through July 17th due to Canadian wildfire smoke creating unhealthy air quality conditions. Vulnerable populations—children, elderly, and those with respiratory conditions—should avoid prolonged outdoor activities. Simultaneously, the Illinois River at Beardstown and near Havana is experiencing minor flooding affecting Schuyler, Brown, Cass, Mason, and Fulton Counties, with water levels expected to remain elevated through Saturday-Sunday before receding. Residents should monitor AirNow.gov for real-time air quality updates and heed flood warnings in central Illinois river communities through mid-week.
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
107%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Thebes
338,000 cfs
Gauge stage 25.00 ft
Biggest 24h spike
Sangamon River At Rt 48 At Decatur
+3%
Now 623 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
1 day ago · USGS 07022000 |
324,000 cfs | 24.33 ft | · | 75°F | 321 ft | Upper Mississippi-Cape Girardeau |
|
Mississippi River At Chester, Il
1 day ago · USGS 07020500 |
283,000 cfs | 19.25 ft | · | 71°F | 358 ft | Upper Mississippi-Cape Girardeau |
|
Illinois River At Valley City, Il
1 day ago · USGS 05586100 |
46,400 cfs | 12.55 ft | · | 72°F | 433 ft | Lower Illinois |
|
Illinois River At Kingston Mines, Il
1 day ago · USGS 05568500 |
31,900 cfs | 14.32 ft | · | 73°F | 441 ft | Lower Illinois-Lake Chautauqua |
|
Wabash River At Mt. Carmel, Il
15 hours ago · USGS 03377500 |
23,800 cfs | 7.87 ft | · | 73°F | 391 ft | Lower Wabash |
|
Illinois River At Henry, Il
1 day ago · USGS 05558300 |
15,000 cfs | 18.50 ft | 86°F | 72°F | 440 ft | Lower Illinois-Senachwine Lake |
|
Illinois River At Marseilles, Il
1 day ago · USGS 05543500 |
8,920 cfs | 12.52 ft | · | 73°F | 459 ft | Upper Illinois |
|
Rock River Near Joslin, Il
1 day ago · USGS 05446500 |
5,690 cfs | 6.30 ft | 34°F | 72°F | 588 ft | Lower Rock |
|
Big Muddy River At Rte 127 At Murphysboro, Il
1 day ago · USGS 05599490 |
5,680 cfs | 16.96 ft | 81°F | 72°F | 357 ft | Big Muddy |
|
Rock River At Como, Il
15 hours ago · USGS 05443500 |
5,410 cfs | 4.38 ft | · | 72°F | 618 ft | Lower Rock |
|
Rock River At Byron, Il
1 day ago · USGS 05440700 |
4,530 cfs | 6.20 ft | 86°F | 73°F | 677 ft | Lower Rock |
|
Kankakee River Near Wilmington, Il
1 day ago · USGS 05527500 |
4,010 cfs | 2.06 ft | 86°F | 74°F | 511 ft | Kankakee |
|
Rock River At Rockton, Il
1 day ago · USGS 05437500 |
3,900 cfs | 4.28 ft | · | 71°F | 712 ft | Lower Rock |
|
Sangamon River Near Oakford, Il
1 day ago · USGS 05583000 |
3,510 cfs | 6.63 ft | 81°F | 71°F | 457 ft | Lower Sangamon |
|
Kaskaskia River At New Athens, Il
16 hours ago · USGS 05595000 |
3,250 cfs | 69.11 ft | 73°F | 72°F | 403 ft | Lower Kaskaskia |
|
Kaskaskia River Near Venedy Station, Il
1 day ago · USGS 05594100 |
3,230 cfs | 9.62 ft | · | 72°F | 395 ft | Lower Kaskaskia |
|
Cache River At Forman, Il
1 day ago · USGS 03612000 |
3,100 cfs | 24.90 ft | · | 71°F | 367 ft | Lower Ohio |
|
Kankakee River At Momence, Il
1 day ago · USGS 05520500 |
2,780 cfs | 2.75 ft | · | 72°F | 610 ft | Kankakee |
|
Kaskaskia River At Carlyle, Il
1 day ago · USGS 05593000 |
2,690 cfs | 13.00 ft | · | 73°F | 413 ft | Middle Kaskaskia |
|
Little Wabash River At Carmi, Il
1 day ago · USGS 03381500 |
2,210 cfs | 8.06 ft | · | 75°F | 419 ft | Little Wabash |
|
Kaskaskia River At Vandalia, Il
1 day ago · USGS 05592500 |
2,020 cfs | 8.88 ft | · | 72°F | 537 ft | Middle Kaskaskia |
|
Sangamon River At Petersburg, Il
16 hours ago · USGS 05578000 |
1,870 cfs | 7.11 ft | 79°F | 71°F | 489 ft | Lower Sangamon |
|
Kaskaskia River Near Cowden, Il
1 day ago · USGS 05592100 |
1,860 cfs | 8.53 ft | · | 71°F | 553 ft | Upper Kaskaskia |
|
Pecatonica River Nr Shirland, Il
16 hours ago · USGS 05437050 |
1,800 cfs | 5.55 ft | · | 71°F | 718 ft | Pecatonica |
|
Kaskaskia River At Shelbyville, Il
1 day ago · USGS 05592000 |
1,760 cfs | 11.46 ft | · | 71°F | 568 ft | Upper Kaskaskia |
|
Fox River At Dayton, Il
1 day ago · USGS 05552500 |
1,720 cfs | 6.54 ft | · | 73°F | 472 ft | Lower Fox |
|
Sangamon River At Riverton, Il
1 day ago · USGS 05576500 |
1,610 cfs | 7.22 ft | · | 71°F | 519 ft | Lower Sangamon |
|
Embarras River At Lawrenceville, Il
16 hours ago · USGS 03346500 |
1,350 cfs | 19.65 ft | 61°F | 73°F | 424 ft | Embarras |
|
Salt Creek Near Greenview, Il
1 day ago · USGS 05582000 |
1,090 cfs | 2.87 ft | 83°F | 71°F | 481 ft | Salt |
|
Pecatonica River At Freeport, Il
1 day ago · USGS 05435500 |
1,010 cfs | 5.48 ft | · | 71°F | 754 ft | Pecatonica |
|
Spoon River At Seville, Il
1 day ago · USGS 05570000 |
785 cfs | 7.27 ft | 53°F | 72°F | 498 ft | Spoon |
|
Mackinaw River Near Green Valley, Il
1 day ago · USGS 05568000 |
775 cfs | 14.98 ft | 75°F | 72°F | 501 ft | Mackinaw |
|
Fox River At Montgomery, Il
16 hours ago · USGS 05551540 |
744 cfs | 11.31 ft | · | 73°F | 613 ft | Lower Fox |
|
Embarras River At Ste. Marie, Il
16 hours ago · USGS 03345500 |
713 cfs | 3.72 ft | · | 73°F | 499 ft | Embarras |
|
Kishwaukee River Near Perryville, Il
1 day ago · USGS 05440000 |
702 cfs | 6.27 ft | · | 72°F | 701 ft | Kishwaukee |
|
Fox River At South Elgin, Il
16 hours ago · USGS 05551000 |
678 cfs | 12.37 ft | · | 73°F | 696 ft | Lower Fox |
|
Green River Near Geneseo, Il
1 day ago · USGS 05447500 |
621 cfs | 4.15 ft | 58°F | 72°F | 586 ft | Green |
|
Vermilion River Near Danville, Il
16 hours ago · USGS 03339000 |
600 cfs | 3.71 ft | 64°F | 71°F | 517 ft | Vermilion |
|
Vermilion River Near Leonore, Il
1 day ago · USGS 05555300 |
555 cfs | 4.64 ft | 76°F | 73°F | 535 ft | Vermilion |
|
Fox River At Algonquin (Tailwater), Il
1 day ago · USGS 05550001 |
553 cfs | 5.04 ft | 32°F | 72°F | 727 ft | Upper Fox |
|
Spoon River At London Mills, Il
1 day ago · USGS 05569500 |
545 cfs | 3.82 ft | 71°F | 72°F | 557 ft | Spoon |
|
South Fork Saline River Nr Carrier Mills, Il
1 day ago · USGS 03382100 |
526 cfs | 5.18 ft | · | 75°F | 415 ft | Saline |
|
Sangamon River At Rt 48 At Decatur, Il
16 hours ago · USGS 05573540 |
503 cfs | 4.76 ft | 75°F | 71°F | 618 ft | Upper Sangamon |
|
Mackinaw River Near Congerville, Il
1 day ago · USGS 05567500 |
482 cfs | 2.47 ft | 47°F | 73°F | 611 ft | Mackinaw |
|
Iroquois River Near Chebanse, Il
16 hours ago · USGS 05526000 |
469 cfs | 3.49 ft | · | 73°F | 600 ft | Iroquois |
|
Big Muddy River At Plumfield, Il
1 day ago · USGS 05597000 |
461 cfs | 6.79 ft | · | 72°F | 379 ft | Big Muddy |
|
Du Page River At Shorewood, Il
1 day ago · USGS 05540500 |
388 cfs | 10.66 ft | · | 74°F | 566 ft | Des Plaines |
|
La Moine River At Ripley, Il
1 day ago · USGS 05585000 |
317 cfs | 6.28 ft | · | 70°F | 467 ft | La Moine |
|
Sangamon River At Monticello, Il
16 hours ago · USGS 05572000 |
310 cfs | 7.10 ft | 77°F | 72°F | 646 ft | Upper Sangamon |
|
Kishwaukee River At Belvidere, Il
1 day ago · USGS 05438500 |
303 cfs | 1.79 ft | · | 71°F | 740 ft | Kishwaukee |
|
Des Plaines River At Riverside, Il
1 day ago · USGS 05532500 |
292 cfs | 2.06 ft | · | 75°F | 598 ft | Des Plaines |
|
Big Bureau Creek At Princeton, Il
1 day ago · USGS 05556500 |
270 cfs | 3.17 ft | · | 72°F | 603 ft | Lower Illinois-Senachwine Lake |
|
Edwards River Near New Boston, Il
1 day ago · USGS 05466500 |
251 cfs | 13.91 ft | · | 72°F | 561 ft | Flint-Henderson |
|
Little Wabash River Below Clay City, Il
15 hours ago · USGS 03379500 |
248 cfs | 6.95 ft | · | 74°F | 477 ft | Little Wabash |
|
South Branch Kishwaukee River Nr Fairdale Il, Il
16 hours ago · USGS 05439500 |
244 cfs | 2.57 ft | · | 72°F | 736 ft | Kishwaukee |
|
Des Plaines River Near Des Plaines, Il
1 day ago · USGS 05529000 |
227 cfs | 8.91 ft | · | 74°F | 625 ft | Des Plaines |
|
South Fork Sangamon River Nr Rochester, Il
1 day ago · USGS 05576000 |
226 cfs | 8.46 ft | 75°F | 71°F | 518 ft | South Fork Sangamon |
|
Henderson Creek Near Oquawka, Il
1 day ago · USGS 05469000 |
221 cfs | 14.47 ft | · | 72°F | 611 ft | Flint-Henderson |
|
Kaskaskia River At Cooks Mills, Il
1 day ago · USGS 05591200 |
193 cfs | 3.53 ft | · | 70°F | 641 ft | Upper Kaskaskia |
|
Vermilion River At Pontiac, Il
1 day ago · USGS 05554500 |
181 cfs | 3.55 ft | 76°F | 73°F | 661 ft | Vermilion |
|
Salt Creek Near Rowell, Il
1 day ago · USGS 05578500 |
176 cfs | 10.98 ft | 77°F | 72°F | 634 ft | Salt |
|
Little Calumet River At South Holland, Il
1 day ago · USGS 05536290 |
147 cfs | 6.35 ft | · | 74°F | 596 ft | Chicago |
|
Silver Creek Near Freeburg, Il
1 day ago · USGS 05594800 |
132 cfs | 1.57 ft | · | 73°F | 418 ft | Lower Kaskaskia |
|
Middle Fork Vermilion River Above Oakwood, Il
1 day ago · USGS 03336645 |
122 cfs | 1.36 ft | · | 70°F | 560 ft | Vermilion |
|
Des Plaines River Near Gurnee, Il
1 day ago · USGS 05528000 |
122 cfs | 2.35 ft | · | 71°F | 664 ft | Des Plaines |
|
La Moine River At Colmar, Il
1 day ago · USGS 05584500 |
115 cfs | 4.51 ft | · | 72°F | 511 ft | La Moine |
|
Sangamon River At Fisher, Il
1 day ago · USGS 05570910 |
105 cfs | 6.23 ft | 82°F | 70°F | 693 ft | Upper Sangamon |
|
Apple River Near Hanover, Il
1 day ago · USGS 05419000 |
102 cfs | 4.16 ft | · | 72°F | 596 ft | Apple-Plum |
|
North Fork Embarras River Near Oblong, Il
16 hours ago · USGS 03346000 |
99 cfs | 4.12 ft | · | 74°F | 498 ft | Embarras |
|
Shoal Creek Near Breese, Il
1 day ago · USGS 05594000 |
99 cfs | 1.65 ft | · | 73°F | 456 ft | Shoal |
|
East Branch Du Page River At Bolingbrook, Il
1 day ago · USGS 05540250 |
99 cfs | 15.06 ft | · | 74°F | 640 ft | Des Plaines |
|
West Branch Du Page River Near Naperville, Il
16 hours ago · USGS 05540130 |
93 cfs | 4.36 ft | · | 74°F | 637 ft | Des Plaines |
|
Kickapoo Creek At Waynesville, Il
16 hours ago · USGS 05580000 |
92 cfs | 3.16 ft | · | 71°F | 635 ft | Salt |
|
Lake Fork Near Cornland, Il
1 day ago · USGS 05579500 |
91 cfs | 4.52 ft | · | 72°F | 569 ft | Salt |
|
Shoal Creek Nr Pierron, Il
1 day ago · USGS 05593945 |
85 cfs | 43.48 ft | · | 73°F | 465 ft | Shoal |
|
Nippersink Creek Near Spring Grove, Il
16 hours ago · USGS 05548280 |
84 cfs | 4.08 ft | · | 70°F | 754 ft | Upper Fox |
|
Iroquois River At Iroquois, Il
1 day ago · USGS 05525000 |
82 cfs | 5.10 ft | · | 73°F | 638 ft | Iroquois |
|
Sugar Creek At Milford, Il
1 day ago · USGS 05525500 |
79 cfs | 3.69 ft | · | 73°F | 644 ft | Iroquois |
|
Thorn Creek At Thornton, Il
15 hours ago · USGS 05536275 |
79 cfs | 3.23 ft | · | 74°F | 603 ft | Chicago |
|
Elkhorn Creek Near Penrose, Il
1 day ago · USGS 05444000 |
78 cfs | 3.04 ft | · | 71°F | 669 ft | Lower Rock |
|
Blackberry Creek Near Yorkville, Il
15 hours ago · USGS 05551700 |
74 cfs | 4.05 ft | · | 73°F | 617 ft | Lower Fox |
|
Salt Creek At Western Springs, Il
1 day ago · USGS 05531500 |
73 cfs | 1.64 ft | · | 75°F | 634 ft | Des Plaines |
|
Salt Fork Near St. Joseph, Il
1 day ago · USGS 03336900 |
69 cfs | 3.48 ft | · | 70°F | 661 ft | Vermilion |
|
Blackberry Creek Near Montgomery, Il
15 hours ago · USGS 05551675 |
67 cfs | 4.09 ft | · | 73°F | 661 ft | Lower Fox |
|
Pope Creek Near Keithsburg, Il
1 day ago · USGS 05467000 |
63 cfs | 19.70 ft | · | 72°F | 550 ft | Flint-Henderson |
|
Mazon River Near Coal City, Il
1 day ago · USGS 05542000 |
63 cfs | 1.61 ft | · | 73°F | 529 ft | Upper Illinois |
|
Hickory Creek At Joliet, Il
16 hours ago · USGS 05539000 |
55 cfs | 10.84 ft | · | 74°F | 535 ft | Des Plaines |
|
Salt Creek At Elmhurst, Il
1 day ago · USGS 05531300 |
53 cfs | 5.11 ft | · | 75°F | 670 ft | Des Plaines |
|
E Br Du Page River Near Downers Grove, Il
16 hours ago · USGS 05540160 |
52 cfs | 12.07 ft | · | 75°F | 675 ft | Des Plaines |
|
West Br Du Page River Near Warrenville, Il
16 hours ago · USGS 05540095 |
49 cfs | 7.81 ft | · | 74°F | 688 ft | Des Plaines |
|
Thorn Creek At Glenwood, Il
1 day ago · USGS 05536215 |
47 cfs | 2.71 ft | · | 74°F | 628 ft | Chicago |
|
Embarras River Near Camargo, Il
16 hours ago · USGS 03343400 |
47 cfs | 3.54 ft | · | 70°F | 644 ft | Embarras |
|
Indian Creek Near Wyoming, Il
1 day ago · USGS 05568800 |
47 cfs | 9.90 ft | · | 72°F | 623 ft | Spoon |
|
South Branch Kishwaukee River At Dekalb, Il
16 hours ago · USGS 05439000 |
40 cfs | 3.42 ft | · | 72°F | 846 ft | Kishwaukee |
|
Tyler Creek At Elgin, Il
1 day ago · USGS 05550300 |
38 cfs | 6.04 ft | · | 72°F | 751 ft | Upper Fox |
|
Cahokia Creek At Edwardsville, Il
15 hours ago · USGS 05587900 |
36 cfs | 3.52 ft | · | 73°F | 456 ft | Cahokia-Joachim |
|
Sinsinawa River Near Menominee, Il
16 hours ago · USGS 05414820 |
34 cfs | 4.84 ft | · | 73°F | 645 ft | Apple-Plum |
|
Sugar Creek Near Bloomington, Il
1 day ago · USGS 05580950 |
34 cfs | 1.02 ft | · | 73°F | 749 ft | Salt |
|
Spring Creek At Springfield, Il
16 hours ago · USGS 05577500 |
34 cfs | 2.48 ft | · | 73°F | 529 ft | Lower Sangamon |
|
Ferson Creek Near St. Charles, Il
16 hours ago · USGS 05551200 |
32 cfs | 1.76 ft | · | 73°F | 709 ft | Lower Fox |
|
West Okaw River Near Lovington, Il
1 day ago · USGS 05591700 |
31 cfs | 4.31 ft | · | 70°F | 639 ft | Upper Kaskaskia |
|
Macoupin Creek Near Kane, Il
15 hours ago · USGS 05587000 |
29 cfs | 4.20 ft | · | 70°F | 445 ft | Macoupin |
|
North Branch Chicago River At Niles, Il
1 day ago · USGS 05536000 |
28 cfs | · | · | 74°F | 608 ft | Chicago |
|
W Branch Du Page River Nr West Chicago, Il
1 day ago · USGS 05539900 |
25 cfs | 3.86 ft | · | 74°F | 723 ft | Des Plaines |
|
Lake Fork At Atwood, Il
16 hours ago · USGS 05590800 |
24 cfs | 2.55 ft | · | 70°F | 661 ft | Upper Kaskaskia |
|
Skillet Fork At Wayne City, Il
1 day ago · USGS 03380500 |
24 cfs | 5.16 ft | · | 72°F | 387 ft | Skillet |
|
Mill Creek At Milan, Il
16 hours ago · USGS 05448000 |
24 cfs | 1.89 ft | · | 73°F | 574 ft | Lower Rock |
|
Silver Creek Near Troy, Il
1 day ago · USGS 05594450 |
22 cfs | 4.54 ft | · | 73°F | 491 ft | Lower Kaskaskia |
|
Flag Creek Near Willow Springs, Il
16 hours ago · USGS 05533000 |
21 cfs | 3.40 ft | · | 75°F | 610 ft | Des Plaines |
|
Richland Creek Near Hecker, Il
1 day ago · USGS 05595200 |
21 cfs | 27.70 ft | · | 72°F | 403 ft | Lower Kaskaskia |
|
Little Wabash River Near Effingham, Il
21 hours ago · USGS 03378635 |
20 cfs | 10.60 ft | · | 72°F | 542 ft | Little Wabash |
|
Addison Creek At Bellwood, Il
22 hours ago · USGS 05532000 |
19 cfs | 1.68 ft | · | 75°F | 627 ft | Des Plaines |
|
Hurricane Creek Near Mulberry Grove, Il
1 day ago · USGS 05592800 |
17 cfs | 3.65 ft | · | 72°F | 551 ft | Middle Kaskaskia |
|
Mill Creek At Old Mill Creek, Il
1 day ago · USGS 05527950 |
16 cfs | 6.17 ft | · | 71°F | 677 ft | Des Plaines |
|
Bear Creek Near Marcelline, Il
16 hours ago · USGS 05495500 |
15 cfs | 2.57 ft | · | 73°F | 523 ft | Bear-Wyaconda |
|
Bonpas Creek At Browns, Il
1 day ago · USGS 03378000 |
14 cfs | 1.89 ft | · | 72°F | 451 ft | Lower Wabash |
|
Farm Creek At Farmdale, Il
1 day ago · USGS 05560500 |
13 cfs | 1.04 ft | · | 72°F | 541 ft | Lower Illinois-Senachwine Lake |
|
Nippersink Creek Above Wonder Lake, Il
16 hours ago · USGS 05548105 |
12 cfs | 4.65 ft | · | 70°F | 806 ft | Upper Fox |
|
Kress Creek At West Chicago, Il
1 day ago · USGS 05540060 |
11 cfs | 4.25 ft | · | 74°F | 706 ft | Des Plaines |
|
Des Plaines River At Russell, Il
1 day ago · USGS 05527800 |
11 cfs | 3.75 ft | · | 71°F | 667 ft | Des Plaines |
|
Whitley Creek Near Allenville, Il
1 day ago · USGS 05591550 |
11 cfs | 2.91 ft | · | 71°F | 625 ft | Upper Kaskaskia |
|
Lusk Creek Near Eddyville, Il
15 hours ago · USGS 03384450 |
10 cfs | 2.82 ft | · | 74°F | 388 ft | Lower Ohio-Bay |
|
Deer Creek Near Chicago Heights, Il
16 hours ago · USGS 05536235 |
10 cfs | 3.35 ft | · | 73°F | 628 ft | Chicago |
|
Mill Creek Near Batavia, Il
1 day ago · USGS 05551330 |
9 cfs | 2.31 ft | · | 73°F | 690 ft | Lower Fox |
|
Spring Brook At 87th Street Near Naperville, Il
1 day ago · USGS 05540275 |
9 cfs | 3.02 ft | · | 74°F | 652 ft | Des Plaines |
|
Skokie River Near Highland Park, Il
15 hours ago · USGS 05535070 |
8 cfs | 2.75 ft | · | 73°F | 632 ft | Chicago |
|
St. Joseph Creek At U.S. Route 34 At Lisle, Il
1 day ago · USGS 05540195 |
8 cfs | 4.41 ft | · | 75°F | 673 ft | Des Plaines |
|
Robinson Creek Near Shelbyville, Il
1 day ago · USGS 05592050 |
8 cfs | 1.88 ft | · | 71°F | 616 ft | Upper Kaskaskia |
|
Butterfield Creek At Flossmoor, Il
15 hours ago · USGS 05536255 |
8 cfs | 4.12 ft | · | 74°F | 635 ft | Chicago |
|
Poplar Creek At Elgin, Il
1 day ago · USGS 05550500 |
7 cfs | 1.17 ft | · | 73°F | 730 ft | Upper Fox |
|
East Fork Shoal Creek Near Coffeen, Il
1 day ago · USGS 05593900 |
7 cfs | 2.18 ft | · | 71°F | 590 ft | Shoal |
|
North Branch Chicago River At Deerfield, Il
15 hours ago · USGS 05534500 |
6 cfs | 4.42 ft | · | 73°F | 642 ft | Chicago |
|
Wf Of Nb Chicago River At Northbrook Il, Il
1 day ago · USGS 05535500 |
5 cfs | · | · | 73°F | 653 ft | Chicago |
|
Little Crooked Creek Near New Minden, Il
16 hours ago · USGS 05593575 |
5 cfs | 5.08 ft | · | 73°F | 485 ft | Middle Kaskaskia |
|
Long Run Near Lemont, Il
1 day ago · USGS 05537500 |
5 cfs | · | · | 74°F | 641 ft | Des Plaines |
|
Salt Creek At Rolling Meadows, Il
16 hours ago · USGS 05530990 |
5 cfs | 2.22 ft | · | 74°F | 694 ft | Des Plaines |
|
East Fork Kaskaskia River Near Sandoval, Il
1 day ago · USGS 05592900 |
4 cfs | 2.92 ft | · | 73°F | 491 ft | Middle Kaskaskia |
|
Crab Orchard Creek Near Marion, Il
1 day ago · USGS 05597500 |
4 cfs | 1.00 ft | · | 72°F | 430 ft | Big Muddy |
|
Casey Fork At Mount Vernon, Il
1 day ago · USGS 05595820 |
4 cfs | 1.59 ft | · | 72°F | 441 ft | Big Muddy |
|
Sawmill Creek Near Lemont, Il
1 day ago · USGS 05533400 |
3 cfs | 8.39 ft | · | 75°F | 647 ft | Des Plaines |
|
Rayse Creek Near Waltonville, Il
1 day ago · USGS 05595730 |
3 cfs | 1.17 ft | · | 75°F | 424 ft | Big Muddy |
|
Boone Creek Near Mc Henry, Il
1 day ago · USGS 05549000 |
3 cfs | · | · | 70°F | 779 ft | Upper Fox |
|
Boneyard Creek At Lincoln Ave At Urbana, Il
1 day ago · USGS 03337100 |
3 cfs | 7.50 ft | · | 72°F | 714 ft | Vermilion |
|
Boneyard Creek At Urbana, Il
16 hours ago · USGS 03337000 |
2 cfs | 10.31 ft | · | 72°F | 717 ft | Vermilion |
|
Indian Creek At Wanda, Il
16 hours ago · USGS 05588000 |
2 cfs | · | · | 73°F | 447 ft | Cahokia-Joachim |
|
Tinley Creek Near Palos Park, Il
15 hours ago · USGS 05536500 |
2 cfs | 2.49 ft | · | 75°F | 608 ft | Chicago |
|
Skokie River At Lake Forest, Il
15 hours ago · USGS 05535000 |
1 cfs | 1.90 ft | · | 72°F | 664 ft | Chicago |
|
Hickory Creek Nr Brownstown, Il
1 day ago · USGS 05592575 |
1 cfs | 4.29 ft | · | 72°F | 507 ft | Middle Kaskaskia |
|
Buffalo Creek Near Wheeling, Il
16 hours ago · USGS 05528500 |
1 cfs | 1.42 ft | · | 73°F | 667 ft | Des Plaines |
|
Midlothian Creek At Oak Forest, Il
1 day ago · USGS 05536340 |
1 cfs | 1.51 ft | · | 75°F | 629 ft | Chicago |
|
Weller Creek At Des Plaines, Il
16 hours ago · USGS 05530000 |
1 cfs | · | · | 74°F | 648 ft | Des Plaines |
|
Mc Donald Creek Near Mount Prospect, Il
16 hours ago · USGS 05529500 |
1 cfs | · | · | 74°F | 641 ft | Des Plaines |
|
Fondulac Creek Near East Peoria, Il
16 hours ago · USGS 05561500 |
0 cfs | 1.57 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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