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
118%
Paddle runs
0
Updated
Jul 12
Open the Illinois flow layer on the map
Every USGS streamgauge filtered to Illinois.
Open the map →
July
12
2026
Flow briefing
Streamflow levels across Illinois are currently 118% of normal, with the Mississippi River At Thebes reporting the highest discharge in the state at 334,000 cfs and a gauge stage of 24.80 ft.
Meanwhile, the Indian Creek At Wanda is seeing a spike today — up 19461% 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
118%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Thebes
334,000 cfs
Gauge stage 24.80 ft
Biggest 24h spike
Indian Creek At Wanda
+19461%
Now 223 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
20 hours ago · USGS 07022000 |
381,000 cfs | 26.84 ft | · | 73°F | 321 ft | Upper Mississippi-Cape Girardeau |
|
Mississippi River At Chester, Il
20 hours ago · USGS 07020500 |
349,000 cfs | 22.08 ft | · | 71°F | 358 ft | Upper Mississippi-Cape Girardeau |
|
Illinois River At Valley City, Il
21 hours ago · USGS 05586100 |
49,900 cfs | 13.44 ft | · | 65°F | 433 ft | Lower Illinois |
|
Illinois River At Kingston Mines, Il
21 hours ago · USGS 05568500 |
37,800 cfs | 16.10 ft | · | 64°F | 441 ft | Lower Illinois-Lake Chautauqua |
|
Wabash River At Mt. Carmel, Il
20 hours ago · USGS 03377500 |
30,200 cfs | 9.44 ft | · | 69°F | 391 ft | Lower Wabash |
|
Illinois River At Henry, Il
20 hours ago · USGS 05558300 |
23,200 cfs | 20.67 ft | 81°F | 63°F | 440 ft | Lower Illinois-Senachwine Lake |
|
Illinois River At Marseilles, Il
20 hours ago · USGS 05543500 |
9,470 cfs | 12.65 ft | · | 64°F | 459 ft | Upper Illinois |
|
Kaskaskia River At New Athens, Il
21 hours ago · USGS 05595000 |
7,680 cfs | 71.65 ft | 73°F | 68°F | 403 ft | Lower Kaskaskia |
|
Rock River Near Joslin, Il
21 hours ago · USGS 05446500 |
6,910 cfs | 7.02 ft | 34°F | 61°F | 588 ft | Lower Rock |
|
Little Wabash River At Carmi, Il
21 hours ago · USGS 03381500 |
6,820 cfs | 18.67 ft | · | 71°F | 419 ft | Little Wabash |
|
Rock River At Como, Il
21 hours ago · USGS 05443500 |
6,310 cfs | 4.78 ft | · | 61°F | 618 ft | Lower Rock |
|
Rock River At Byron, Il
21 hours ago · USGS 05440700 |
5,540 cfs | 6.67 ft | 80°F | 63°F | 677 ft | Lower Rock |
|
Big Muddy River At Rte 127 At Murphysboro, Il
21 hours ago · USGS 05599490 |
4,880 cfs | 17.63 ft | 75°F | 73°F | 357 ft | Big Muddy |
|
Cache River At Forman, Il
21 hours ago · USGS 03612000 |
4,700 cfs | 29.20 ft | · | 69°F | 367 ft | Lower Ohio |
|
Kaskaskia River Near Venedy Station, Il
21 hours ago · USGS 05594100 |
4,640 cfs | 11.97 ft | · | 68°F | 395 ft | Lower Kaskaskia |
|
Kankakee River Near Wilmington, Il
20 hours ago · USGS 05527500 |
4,360 cfs | 2.14 ft | 76°F | 66°F | 511 ft | Kankakee |
|
Rock River At Rockton, Il
21 hours ago · USGS 05437500 |
4,050 cfs | 4.38 ft | · | 62°F | 712 ft | Lower Rock |
|
Sangamon River Near Oakford, Il
21 hours ago · USGS 05583000 |
3,930 cfs | 6.99 ft | 81°F | 64°F | 457 ft | Lower Sangamon |
|
Kankakee River At Momence, Il
21 hours ago · USGS 05520500 |
3,810 cfs | 3.03 ft | · | 66°F | 610 ft | Kankakee |
|
Kaskaskia River At Carlyle, Il
21 hours ago · USGS 05593000 |
3,420 cfs | 14.71 ft | · | 68°F | 413 ft | Middle Kaskaskia |
|
Sangamon River At Riverton, Il
21 hours ago · USGS 05576500 |
3,020 cfs | 10.33 ft | · | 65°F | 519 ft | Lower Sangamon |
|
Sangamon River At Petersburg, Il
21 hours ago · USGS 05578000 |
2,810 cfs | 8.41 ft | 79°F | 64°F | 489 ft | Lower Sangamon |
|
Fox River At Dayton, Il
21 hours ago · USGS 05552500 |
2,770 cfs | 7.46 ft | · | 64°F | 472 ft | Lower Fox |
|
Embarras River At Lawrenceville, Il
21 hours ago · USGS 03346500 |
2,660 cfs | 22.06 ft | 61°F | 68°F | 424 ft | Embarras |
|
South Fork Saline River Nr Carrier Mills, Il
21 hours ago · USGS 03382100 |
2,590 cfs | 12.25 ft | · | 71°F | 415 ft | Saline |
|
Pecatonica River Nr Shirland, Il
21 hours ago · USGS 05437050 |
2,050 cfs | 6.08 ft | · | 62°F | 718 ft | Pecatonica |
|
Sangamon River At Rt 48 At Decatur, Il
21 hours ago · USGS 05573540 |
2,030 cfs | 9.56 ft | 75°F | 65°F | 618 ft | Upper Sangamon |
|
Kaskaskia River At Vandalia, Il
21 hours ago · USGS 05592500 |
1,990 cfs | 9.46 ft | · | 67°F | 537 ft | Middle Kaskaskia |
|
Kaskaskia River Near Cowden, Il
21 hours ago · USGS 05592100 |
1,880 cfs | 8.91 ft | · | 66°F | 553 ft | Upper Kaskaskia |
|
Kaskaskia River At Shelbyville, Il
21 hours ago · USGS 05592000 |
1,800 cfs | 11.56 ft | · | 65°F | 568 ft | Upper Kaskaskia |
|
Mackinaw River Near Green Valley, Il
21 hours ago · USGS 05568000 |
1,670 cfs | 16.59 ft | 75°F | 63°F | 501 ft | Mackinaw |
|
Salt Creek Near Greenview, Il
21 hours ago · USGS 05582000 |
1,470 cfs | 3.44 ft | 83°F | 64°F | 481 ft | Salt |
|
Embarras River At Ste. Marie, Il
20 hours ago · USGS 03345500 |
1,440 cfs | 4.79 ft | · | 68°F | 499 ft | Embarras |
|
Vermilion River Near Danville, Il
21 hours ago · USGS 03339000 |
1,390 cfs | 5.18 ft | 64°F | 66°F | 517 ft | Vermilion |
|
Little Wabash River Below Clay City, Il
21 hours ago · USGS 03379500 |
1,330 cfs | 12.58 ft | · | 68°F | 477 ft | Little Wabash |
|
Spoon River At Seville, Il
21 hours ago · USGS 05570000 |
1,300 cfs | 8.68 ft | 53°F | 63°F | 498 ft | Spoon |
|
Mackinaw River Near Congerville, Il
21 hours ago · USGS 05567500 |
1,210 cfs | 4.17 ft | 47°F | 63°F | 611 ft | Mackinaw |
|
Pecatonica River At Freeport, Il
21 hours ago · USGS 05435500 |
1,140 cfs | 6.01 ft | · | 60°F | 754 ft | Pecatonica |
|
North Fork Embarras River Near Oblong, Il
21 hours ago · USGS 03346000 |
1,130 cfs | 10.34 ft | · | 68°F | 498 ft | Embarras |
|
Fox River At Montgomery, Il
21 hours ago · USGS 05551540 |
1,120 cfs | 11.55 ft | · | 66°F | 613 ft | Lower Fox |
|
Kishwaukee River Near Perryville, Il
21 hours ago · USGS 05440000 |
1,080 cfs | 6.80 ft | · | 64°F | 701 ft | Kishwaukee |
|
Sangamon River At Monticello, Il
21 hours ago · USGS 05572000 |
1,060 cfs | 10.63 ft | 77°F | 64°F | 646 ft | Upper Sangamon |
|
Fox River At South Elgin, Il
21 hours ago · USGS 05551000 |
956 cfs | 12.56 ft | · | 66°F | 696 ft | Lower Fox |
|
Vermilion River Near Leonore, Il
21 hours ago · USGS 05555300 |
943 cfs | 5.49 ft | 76°F | 64°F | 535 ft | Vermilion |
|
Silver Creek Near Freeburg, Il
21 hours ago · USGS 05594800 |
899 cfs | 5.32 ft | · | 68°F | 418 ft | Lower Kaskaskia |
|
Green River Near Geneseo, Il
21 hours ago · USGS 05447500 |
815 cfs | 4.82 ft | 58°F | 60°F | 586 ft | Green |
|
Spoon River At London Mills, Il
21 hours ago · USGS 05569500 |
765 cfs | 4.69 ft | 71°F | 62°F | 557 ft | Spoon |
|
Fox River At Algonquin (Tailwater), Il
21 hours ago · USGS 05550001 |
720 cfs | 5.40 ft | 64°F | 65°F | 727 ft | Upper Fox |
|
Du Page River At Shorewood, Il
21 hours ago · USGS 05540500 |
686 cfs | 11.08 ft | · | 66°F | 566 ft | Des Plaines |
|
Shoal Creek Nr Pierron, Il
21 hours ago · USGS 05593945 |
587 cfs | 47.23 ft | · | 67°F | 465 ft | Shoal |
|
Bonpas Creek At Browns, Il
20 hours ago · USGS 03378000 |
554 cfs | 7.47 ft | · | 71°F | 451 ft | Lower Wabash |
|
Silver Creek Near Troy, Il
21 hours ago · USGS 05594450 |
513 cfs | 10.37 ft | · | 68°F | 491 ft | Lower Kaskaskia |
|
Cahokia Creek At Edwardsville, Il
21 hours ago · USGS 05587900 |
503 cfs | 5.22 ft | · | 68°F | 456 ft | Cahokia-Joachim |
|
Iroquois River Near Chebanse, Il
21 hours ago · USGS 05526000 |
501 cfs | 3.56 ft | · | 65°F | 600 ft | Iroquois |
|
South Fork Sangamon River Nr Rochester, Il
21 hours ago · USGS 05576000 |
483 cfs | 11.35 ft | 75°F | 65°F | 518 ft | South Fork Sangamon |
|
South Branch Kishwaukee River Nr Fairdale Il, Il
21 hours ago · USGS 05439500 |
474 cfs | 3.19 ft | · | 64°F | 736 ft | Kishwaukee |
|
La Moine River At Ripley, Il
21 hours ago · USGS 05585000 |
470 cfs | 7.09 ft | · | 64°F | 467 ft | La Moine |
|
Kishwaukee River At Belvidere, Il
21 hours ago · USGS 05438500 |
457 cfs | 2.18 ft | · | 63°F | 740 ft | Kishwaukee |
|
Des Plaines River At Riverside, Il
21 hours ago · USGS 05532500 |
444 cfs | 2.46 ft | · | 70°F | 598 ft | Des Plaines |
|
Richland Creek Near Hecker, Il
21 hours ago · USGS 05595200 |
419 cfs | 32.16 ft | · | 67°F | 403 ft | Lower Kaskaskia |
|
Henderson Creek Near Oquawka, Il
21 hours ago · USGS 05469000 |
409 cfs | 15.41 ft | · | 62°F | 611 ft | Flint-Henderson |
|
Big Bureau Creek At Princeton, Il
21 hours ago · USGS 05556500 |
399 cfs | 3.43 ft | · | 62°F | 603 ft | Lower Illinois-Senachwine Lake |
|
Big Muddy River At Plumfield, Il
21 hours ago · USGS 05597000 |
395 cfs | 6.18 ft | · | 72°F | 379 ft | Big Muddy |
|
Edwards River Near New Boston, Il
21 hours ago · USGS 05466500 |
330 cfs | 14.36 ft | · | 65°F | 561 ft | Flint-Henderson |
|
Kaskaskia River At Cooks Mills, Il
21 hours ago · USGS 05591200 |
326 cfs | 4.34 ft | · | 66°F | 641 ft | Upper Kaskaskia |
|
Vermilion River At Pontiac, Il
21 hours ago · USGS 05554500 |
321 cfs | 3.92 ft | 76°F | 64°F | 661 ft | Vermilion |
|
Des Plaines River Near Des Plaines, Il
20 hours ago · USGS 05529000 |
302 cfs | 9.20 ft | · | 68°F | 625 ft | Des Plaines |
|
Sugar Creek At Milford, Il
21 hours ago · USGS 05525500 |
297 cfs | 5.56 ft | · | 65°F | 644 ft | Iroquois |
|
Lusk Creek Near Eddyville, Il
20 hours ago · USGS 03384450 |
292 cfs | 4.16 ft | · | 68°F | 388 ft | Lower Ohio-Bay |
|
Salt Creek Near Rowell, Il
21 hours ago · USGS 05578500 |
281 cfs | 11.83 ft | 77°F | 64°F | 634 ft | Salt |
|
Sangamon River At Fisher, Il
21 hours ago · USGS 05570910 |
261 cfs | 8.13 ft | 82°F | 64°F | 693 ft | Upper Sangamon |
|
Little Crooked Creek Near New Minden, Il
21 hours ago · USGS 05593575 |
260 cfs | 10.98 ft | · | 68°F | 485 ft | Middle Kaskaskia |
|
Salt Fork Near St. Joseph, Il
21 hours ago · USGS 03336900 |
257 cfs | 5.60 ft | · | 65°F | 661 ft | Vermilion |
|
La Moine River At Colmar, Il
21 hours ago · USGS 05584500 |
248 cfs | 5.48 ft | · | 66°F | 511 ft | La Moine |
|
Little Calumet River At South Holland, Il
21 hours ago · USGS 05536290 |
216 cfs | 6.91 ft | · | 69°F | 596 ft | Chicago |
|
West Branch Du Page River Near Naperville, Il
21 hours ago · USGS 05540130 |
193 cfs | 4.77 ft | · | 68°F | 637 ft | Des Plaines |
|
Macoupin Creek Near Kane, Il
21 hours ago · USGS 05587000 |
191 cfs | 5.17 ft | · | 64°F | 445 ft | Macoupin |
|
Des Plaines River Near Gurnee, Il
21 hours ago · USGS 05528000 |
163 cfs | 2.69 ft | · | 66°F | 664 ft | Des Plaines |
|
Spring Creek At Springfield, Il
21 hours ago · USGS 05577500 |
162 cfs | 3.58 ft | · | 65°F | 529 ft | Lower Sangamon |
|
Crab Orchard Creek Near Marion, Il
21 hours ago · USGS 05597500 |
162 cfs | 5.15 ft | · | 71°F | 430 ft | Big Muddy |
|
Middle Fork Vermilion River Above Oakwood, Il
21 hours ago · USGS 03336645 |
160 cfs | 1.50 ft | · | 66°F | 560 ft | Vermilion |
|
Little Wabash River Near Effingham, Il
21 hours ago · USGS 03378635 |
159 cfs | 11.06 ft | · | 66°F | 542 ft | Little Wabash |
|
East Branch Du Page River At Bolingbrook, Il
20 hours ago · USGS 05540250 |
151 cfs | 15.50 ft | · | 68°F | 640 ft | Des Plaines |
|
Iroquois River At Iroquois, Il
21 hours ago · USGS 05525000 |
150 cfs | 5.68 ft | · | 65°F | 638 ft | Iroquois |
|
Mazon River Near Coal City, Il
21 hours ago · USGS 05542000 |
142 cfs | 1.97 ft | · | 65°F | 529 ft | Upper Illinois |
|
Blackberry Creek Near Yorkville, Il
21 hours ago · USGS 05551700 |
138 cfs | 4.78 ft | · | 65°F | 617 ft | Lower Fox |
|
Hickory Creek At Joliet, Il
21 hours ago · USGS 05539000 |
134 cfs | 11.40 ft | · | 66°F | 535 ft | Des Plaines |
|
Salt Creek At Western Springs, Il
21 hours ago · USGS 05531500 |
129 cfs | 1.97 ft | · | 69°F | 634 ft | Des Plaines |
|
Lake Fork Near Cornland, Il
21 hours ago · USGS 05579500 |
129 cfs | 4.96 ft | · | 65°F | 569 ft | Salt |
|
Bear Creek Near Marcelline, Il
21 hours ago · USGS 05495500 |
126 cfs | 3.41 ft | · | 65°F | 523 ft | Bear-Wyaconda |
|
Kickapoo Creek At Waynesville, Il
21 hours ago · USGS 05580000 |
126 cfs | 3.43 ft | · | 64°F | 635 ft | Salt |
|
Shoal Creek Near Breese, Il
21 hours ago · USGS 05594000 |
113 cfs | 1.73 ft | · | 68°F | 456 ft | Shoal |
|
Blackberry Creek Near Montgomery, Il
21 hours ago · USGS 05551675 |
108 cfs | 4.54 ft | · | 65°F | 661 ft | Lower Fox |
|
Apple River Near Hanover, Il
21 hours ago · USGS 05419000 |
107 cfs | 4.17 ft | · | 62°F | 596 ft | Apple-Plum |
|
Thorn Creek At Thornton, Il
21 hours ago · USGS 05536275 |
101 cfs | 3.38 ft | · | 68°F | 603 ft | Chicago |
|
Nippersink Creek Near Spring Grove, Il
21 hours ago · USGS 05548280 |
101 cfs | 4.23 ft | · | 64°F | 754 ft | Upper Fox |
|
West Br Du Page River Near Warrenville, Il
21 hours ago · USGS 05540095 |
93 cfs | 8.09 ft | · | 68°F | 688 ft | Des Plaines |
|
West Okaw River Near Lovington, Il
21 hours ago · USGS 05591700 |
92 cfs | 5.29 ft | · | 65°F | 639 ft | Upper Kaskaskia |
|
Pope Creek Near Keithsburg, Il
21 hours ago · USGS 05467000 |
91 cfs | 20.00 ft | · | 62°F | 550 ft | Flint-Henderson |
|
Elkhorn Creek Near Penrose, Il
21 hours ago · USGS 05444000 |
90 cfs | 3.12 ft | · | 61°F | 669 ft | Lower Rock |
|
Tyler Creek At Elgin, Il
21 hours ago · USGS 05550300 |
79 cfs | 6.35 ft | · | 66°F | 751 ft | Upper Fox |
|
South Branch Kishwaukee River At Dekalb, Il
21 hours ago · USGS 05439000 |
76 cfs | 3.80 ft | · | 64°F | 846 ft | Kishwaukee |
|
Indian Creek Near Wyoming, Il
21 hours ago · USGS 05568800 |
74 cfs | 10.31 ft | · | 62°F | 623 ft | Spoon |
|
Salt Creek At Elmhurst, Il
21 hours ago · USGS 05531300 |
73 cfs | 5.31 ft | · | 69°F | 670 ft | Des Plaines |
|
Indian Creek At Wanda, Il
21 hours ago · USGS 05588000 |
67 cfs | 1.74 ft | · | 67°F | 447 ft | Cahokia-Joachim |
|
Embarras River Near Camargo, Il
21 hours ago · USGS 03343400 |
66 cfs | 3.96 ft | · | 66°F | 644 ft | Embarras |
|
E Br Du Page River Near Downers Grove, Il
21 hours ago · USGS 05540160 |
65 cfs | 12.19 ft | · | 68°F | 675 ft | Des Plaines |
|
Thorn Creek At Glenwood, Il
21 hours ago · USGS 05536215 |
55 cfs | 2.78 ft | · | 67°F | 628 ft | Chicago |
|
W Branch Du Page River Nr West Chicago, Il
21 hours ago · USGS 05539900 |
47 cfs | 4.23 ft | · | 68°F | 723 ft | Des Plaines |
|
Ferson Creek Near St. Charles, Il
21 hours ago · USGS 05551200 |
46 cfs | 1.95 ft | · | 66°F | 709 ft | Lower Fox |
|
Sugar Creek Near Bloomington, Il
21 hours ago · USGS 05580950 |
44 cfs | 1.09 ft | · | 63°F | 749 ft | Salt |
|
Lake Fork At Atwood, Il
21 hours ago · USGS 05590800 |
39 cfs | 3.03 ft | · | 65°F | 661 ft | Upper Kaskaskia |
|
North Branch Chicago River At Niles, Il
21 hours ago · USGS 05536000 |
38 cfs | · | · | 69°F | 608 ft | Chicago |
|
Des Plaines River At Russell, Il
21 hours ago · USGS 05527800 |
37 cfs | 4.40 ft | · | 65°F | 667 ft | Des Plaines |
|
Hurricane Creek Near Mulberry Grove, Il
21 hours ago · USGS 05592800 |
35 cfs | 3.92 ft | · | 67°F | 551 ft | Middle Kaskaskia |
|
Sinsinawa River Near Menominee, Il
21 hours ago · USGS 05414820 |
34 cfs | 4.84 ft | · | 62°F | 645 ft | Apple-Plum |
|
Mill Creek At Milan, Il
21 hours ago · USGS 05448000 |
30 cfs | 1.98 ft | · | 63°F | 574 ft | Lower Rock |
|
Addison Creek At Bellwood, Il
21 hours ago · USGS 05532000 |
26 cfs | 1.81 ft | · | 69°F | 627 ft | Des Plaines |
|
Mill Creek At Old Mill Creek, Il
21 hours ago · USGS 05527950 |
25 cfs | 6.42 ft | · | 65°F | 677 ft | Des Plaines |
|
Farm Creek At Farmdale, Il
21 hours ago · USGS 05560500 |
24 cfs | 1.25 ft | · | 63°F | 541 ft | Lower Illinois-Senachwine Lake |
|
Skillet Fork At Wayne City, Il
21 hours ago · USGS 03380500 |
22 cfs | 5.14 ft | · | 70°F | 387 ft | Skillet |
|
East Fork Shoal Creek Near Coffeen, Il
21 hours ago · USGS 05593900 |
21 cfs | 2.69 ft | · | 65°F | 590 ft | Shoal |
|
Butterfield Creek At Flossmoor, Il
21 hours ago · USGS 05536255 |
21 cfs | 4.43 ft | · | 68°F | 635 ft | Chicago |
|
Mill Creek Near Batavia, Il
21 hours ago · USGS 05551330 |
20 cfs | 2.51 ft | · | 66°F | 690 ft | Lower Fox |
|
Kress Creek At West Chicago, Il
21 hours ago · USGS 05540060 |
20 cfs | 4.39 ft | · | 68°F | 706 ft | Des Plaines |
|
Flag Creek Near Willow Springs, Il
21 hours ago · USGS 05533000 |
19 cfs | 3.36 ft | · | 69°F | 610 ft | Des Plaines |
|
Whitley Creek Near Allenville, Il
21 hours ago · USGS 05591550 |
18 cfs | 3.27 ft | · | 65°F | 625 ft | Upper Kaskaskia |
|
Deer Creek Near Chicago Heights, Il
21 hours ago · USGS 05536235 |
18 cfs | 3.67 ft | · | 67°F | 628 ft | Chicago |
|
Nippersink Creek Above Wonder Lake, Il
21 hours ago · USGS 05548105 |
18 cfs | 4.73 ft | · | 64°F | 806 ft | Upper Fox |
|
Spring Brook At 87th Street Near Naperville, Il
21 hours ago · USGS 05540275 |
14 cfs | 3.30 ft | · | 67°F | 652 ft | Des Plaines |
|
Poplar Creek At Elgin, Il
21 hours ago · USGS 05550500 |
13 cfs | 1.32 ft | · | 66°F | 730 ft | Upper Fox |
|
Robinson Creek Near Shelbyville, Il
21 hours ago · USGS 05592050 |
12 cfs | 1.99 ft | · | 65°F | 616 ft | Upper Kaskaskia |
|
East Fork Kaskaskia River Near Sandoval, Il
21 hours ago · USGS 05592900 |
12 cfs | 3.17 ft | · | 68°F | 491 ft | Middle Kaskaskia |
|
North Branch Chicago River At Deerfield, Il
20 hours ago · USGS 05534500 |
10 cfs | 4.64 ft | · | 69°F | 642 ft | Chicago |
|
Skokie River Near Highland Park, Il
20 hours ago · USGS 05535070 |
10 cfs | 2.80 ft | · | 69°F | 632 ft | Chicago |
|
Long Run Near Lemont, Il
21 hours ago · USGS 05537500 |
9 cfs | · | · | 67°F | 641 ft | Des Plaines |
|
Wf Of Nb Chicago River At Northbrook Il, Il
21 hours ago · USGS 05535500 |
8 cfs | 1.02 ft | · | 69°F | 653 ft | Chicago |
|
Salt Creek At Rolling Meadows, Il
21 hours ago · USGS 05530990 |
7 cfs | 2.33 ft | · | 68°F | 694 ft | Des Plaines |
|
Sawmill Creek Near Lemont, Il
21 hours ago · USGS 05533400 |
7 cfs | 8.60 ft | · | 68°F | 647 ft | Des Plaines |
|
Rayse Creek Near Waltonville, Il
21 hours ago · USGS 05595730 |
6 cfs | 1.41 ft | · | 71°F | 424 ft | Big Muddy |
|
Boone Creek Near Mc Henry, Il
21 hours ago · USGS 05549000 |
5 cfs | 1.05 ft | · | 64°F | 779 ft | Upper Fox |
|
Midlothian Creek At Oak Forest, Il
21 hours ago · USGS 05536340 |
5 cfs | 1.69 ft | · | 68°F | 629 ft | Chicago |
|
Boneyard Creek At Lincoln Ave At Urbana, Il
21 hours ago · USGS 03337100 |
5 cfs | 7.55 ft | · | 65°F | 714 ft | Vermilion |
|
Casey Fork At Mount Vernon, Il
21 hours ago · USGS 05595820 |
5 cfs | 1.67 ft | · | 68°F | 441 ft | Big Muddy |
|
Hickory Creek Nr Brownstown, Il
21 hours ago · USGS 05592575 |
4 cfs | 4.44 ft | · | 67°F | 507 ft | Middle Kaskaskia |
|
Boneyard Creek At Urbana, Il
21 hours ago · USGS 03337000 |
4 cfs | 10.53 ft | · | 65°F | 717 ft | Vermilion |
|
Tinley Creek Near Palos Park, Il
20 hours ago · USGS 05536500 |
3 cfs | 2.53 ft | · | 68°F | 608 ft | Chicago |
|
St. Joseph Creek At U.S. Route 34 At Lisle, Il
20 hours ago · USGS 05540195 |
3 cfs | 4.29 ft | · | 68°F | 673 ft | Des Plaines |
|
Buffalo Creek Near Wheeling, Il
21 hours ago · USGS 05528500 |
3 cfs | 1.55 ft | · | 67°F | 667 ft | Des Plaines |
|
Skokie River At Lake Forest, Il
20 hours ago · USGS 05535000 |
2 cfs | 1.95 ft | · | 68°F | 664 ft | Chicago |
|
Mc Donald Creek Near Mount Prospect, Il
21 hours ago · USGS 05529500 |
1 cfs | · | · | 68°F | 641 ft | Des Plaines |
|
Fondulac Creek Near East Peoria, Il
21 hours ago · USGS 05561500 |
1 cfs | 2.22 ft | · | 63°F | 521 ft | Lower Illinois-Senachwine Lake |
|
Weller Creek At Des Plaines, Il
21 hours ago · USGS 05530000 |
1 cfs | · | · | 69°F | 648 ft | Des Plaines |
🔒 Premium
See every Illinois gauge ranked against normal.
- Percentile rank & % of median for all 153 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
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.
Browse other states
Streamflow in every state
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
District Of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Puerto Rico
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virgin Islands
Virginia
Washington
West Virginia
Wisconsin
Wyoming