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
97%
Paddle runs
0
Updated
Jul 19
Open the Illinois flow layer on the map
Every USGS streamgauge filtered to Illinois.
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July
19
2026
Flow briefing
Streamflow levels across Illinois are currently 97% of normal, with the Mississippi River At Thebes reporting the highest discharge in the state at 285,000 cfs and a gauge stage of 22.20 ft.
Meanwhile, the Cahokia Creek At Edwardsville is seeing a spike today — up 3521% 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
97%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Mississippi River At Thebes
285,000 cfs
Gauge stage 22.20 ft
Biggest 24h spike
Cahokia Creek At Edwardsville
+3521%
Now 1,300 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 |
274,000 cfs | 21.50 ft | · | 74°F | 321 ft | Upper Mississippi-Cape Girardeau |
|
Mississippi River At Chester, Il
1 day ago · USGS 07020500 |
249,000 cfs | 17.14 ft | · | 76°F | 358 ft | Upper Mississippi-Cape Girardeau |
|
Illinois River At Valley City, Il
1 day ago · USGS 05586100 |
42,100 cfs | 11.45 ft | · | 74°F | 433 ft | Lower Illinois |
|
Illinois River At Kingston Mines, Il
1 day ago · USGS 05568500 |
27,900 cfs | 12.83 ft | · | 73°F | 441 ft | Lower Illinois-Lake Chautauqua |
|
Wabash River At Mt. Carmel, Il
1 day ago · USGS 03377500 |
20,300 cfs | 6.98 ft | · | 74°F | 391 ft | Lower Wabash |
|
Illinois River At Henry, Il
1 day ago · USGS 05558300 |
13,800 cfs | 17.10 ft | 87°F | 73°F | 440 ft | Lower Illinois-Senachwine Lake |
|
Illinois River At Marseilles, Il
1 day ago · USGS 05543500 |
6,240 cfs | 11.85 ft | · | 74°F | 459 ft | Upper Illinois |
|
Rock River Near Joslin, Il
1 day ago · USGS 05446500 |
5,120 cfs | 5.95 ft | 34°F | 74°F | 588 ft | Lower Rock |
|
Rock River At Como, Il
1 day ago · USGS 05443500 |
4,780 cfs | 4.08 ft | · | 73°F | 618 ft | Lower Rock |
|
Rock River At Byron, Il
1 day ago · USGS 05440700 |
4,240 cfs | 6.06 ft | 85°F | 73°F | 677 ft | Lower Rock |
|
Rock River At Rockton, Il
1 day ago · USGS 05437500 |
3,650 cfs | 4.11 ft | · | 74°F | 712 ft | Lower Rock |
|
Kankakee River Near Wilmington, Il
1 day ago · USGS 05527500 |
2,770 cfs | 1.74 ft | 84°F | 74°F | 511 ft | Kankakee |
|
Sangamon River Near Oakford, Il
1 day ago · USGS 05583000 |
2,740 cfs | 5.93 ft | 81°F | 73°F | 457 ft | Lower Sangamon |
|
Big Muddy River At Rte 127 At Murphysboro, Il
1 day ago · USGS 05599490 |
2,680 cfs | 10.94 ft | 82°F | 74°F | 357 ft | Big Muddy |
|
Kaskaskia River Near Venedy Station, Il
1 day ago · USGS 05594100 |
2,480 cfs | 8.34 ft | · | 73°F | 395 ft | Lower Kaskaskia |
|
Kaskaskia River At Vandalia, Il
1 day ago · USGS 05592500 |
2,150 cfs | 9.15 ft | · | 73°F | 537 ft | Middle Kaskaskia |
|
Kankakee River At Momence, Il
1 day ago · USGS 05520500 |
2,010 cfs | 2.30 ft | · | 73°F | 610 ft | Kankakee |
|
Kaskaskia River At Carlyle, Il
1 day ago · USGS 05593000 |
1,970 cfs | 11.45 ft | · | 74°F | 413 ft | Middle Kaskaskia |
|
Kaskaskia River At New Athens, Il
1 day ago · USGS 05595000 |
1,950 cfs | 69.00 ft | 73°F | 73°F | 403 ft | Lower Kaskaskia |
|
Kaskaskia River Near Cowden, Il
1 day ago · USGS 05592100 |
1,820 cfs | 8.42 ft | · | 73°F | 553 ft | Upper Kaskaskia |
|
Kaskaskia River At Shelbyville, Il
1 day ago · USGS 05592000 |
1,740 cfs | 11.41 ft | · | 72°F | 568 ft | Upper Kaskaskia |
|
Pecatonica River Nr Shirland, Il
1 day ago · USGS 05437050 |
1,700 cfs | 5.34 ft | · | 74°F | 718 ft | Pecatonica |
|
Fox River At Dayton, Il
1 day ago · USGS 05552500 |
1,450 cfs | 6.26 ft | · | 74°F | 472 ft | Lower Fox |
|
Sangamon River At Petersburg, Il
1 day ago · USGS 05578000 |
1,450 cfs | 6.51 ft | 79°F | 73°F | 489 ft | Lower Sangamon |
|
Cache River At Forman, Il
1 day ago · USGS 03612000 |
1,270 cfs | 18.07 ft | · | 73°F | 367 ft | Lower Ohio |
|
Little Wabash River At Carmi, Il
1 day ago · USGS 03381500 |
1,120 cfs | 6.01 ft | · | 73°F | 419 ft | Little Wabash |
|
Sangamon River At Riverton, Il
1 day ago · USGS 05576500 |
975 cfs | 5.43 ft | · | 73°F | 519 ft | Lower Sangamon |
|
Embarras River At Lawrenceville, Il
1 day ago · USGS 03346500 |
969 cfs | 18.97 ft | 61°F | 74°F | 424 ft | Embarras |
|
Pecatonica River At Freeport, Il
1 day ago · USGS 05435500 |
952 cfs | 5.22 ft | · | 76°F | 754 ft | Pecatonica |
|
Salt Creek Near Greenview, Il
1 day ago · USGS 05582000 |
898 cfs | 2.55 ft | 83°F | 73°F | 481 ft | Salt |
|
Fox River At Montgomery, Il
1 day ago · USGS 05551540 |
687 cfs | 11.27 ft | · | 74°F | 613 ft | Lower Fox |
|
Spoon River At Seville, Il
1 day ago · USGS 05570000 |
643 cfs | 6.87 ft | 53°F | 73°F | 498 ft | Spoon |
|
Fox River At South Elgin, Il
1 day ago · USGS 05551000 |
639 cfs | 12.34 ft | · | 74°F | 696 ft | Lower Fox |
|
Kishwaukee River Near Perryville, Il
1 day ago · USGS 05440000 |
631 cfs | 6.18 ft | · | 74°F | 701 ft | Kishwaukee |
|
Mackinaw River Near Green Valley, Il
1 day ago · USGS 05568000 |
599 cfs | 14.60 ft | 75°F | 73°F | 501 ft | Mackinaw |
|
Embarras River At Ste. Marie, Il
1 day ago · USGS 03345500 |
556 cfs | 3.26 ft | · | 74°F | 499 ft | Embarras |
|
Green River Near Geneseo, Il
1 day ago · USGS 05447500 |
520 cfs | 3.78 ft | 58°F | 76°F | 586 ft | Green |
|
Fox River At Algonquin (Tailwater), Il
1 day ago · USGS 05550001 |
479 cfs | 4.87 ft | 32°F | 74°F | 727 ft | Upper Fox |
|
Vermilion River Near Danville, Il
1 day ago · USGS 03339000 |
460 cfs | 3.36 ft | 64°F | 73°F | 517 ft | Vermilion |
|
Spoon River At London Mills, Il
1 day ago · USGS 05569500 |
444 cfs | 3.44 ft | 71°F | 73°F | 557 ft | Spoon |
|
Little Wabash River Below Clay City, Il
1 day ago · USGS 03379500 |
403 cfs | 8.01 ft | · | 73°F | 477 ft | Little Wabash |
|
Vermilion River Near Leonore, Il
1 day ago · USGS 05555300 |
387 cfs | 4.31 ft | 76°F | 74°F | 535 ft | Vermilion |
|
Mackinaw River Near Congerville, Il
1 day ago · USGS 05567500 |
359 cfs | 2.09 ft | 47°F | 73°F | 611 ft | Mackinaw |
|
Du Page River At Shorewood, Il
1 day ago · USGS 05540500 |
357 cfs | 10.61 ft | · | 74°F | 566 ft | Des Plaines |
|
Iroquois River Near Chebanse, Il
1 day ago · USGS 05526000 |
327 cfs | 3.15 ft | · | 73°F | 600 ft | Iroquois |
|
La Moine River At Ripley, Il
1 day ago · USGS 05585000 |
259 cfs | 5.95 ft | · | 74°F | 467 ft | La Moine |
|
Des Plaines River At Riverside, Il
1 day ago · USGS 05532500 |
247 cfs | 1.92 ft | · | 77°F | 598 ft | Des Plaines |
|
Kishwaukee River At Belvidere, Il
1 day ago · USGS 05438500 |
246 cfs | 1.62 ft | · | 73°F | 740 ft | Kishwaukee |
|
Big Bureau Creek At Princeton, Il
1 day ago · USGS 05556500 |
223 cfs | 3.06 ft | · | 76°F | 603 ft | Lower Illinois-Senachwine Lake |
|
Sangamon River At Monticello, Il
1 day ago · USGS 05572000 |
217 cfs | 6.47 ft | 77°F | 73°F | 646 ft | Upper Sangamon |
|
Des Plaines River Near Des Plaines, Il
1 day ago · USGS 05529000 |
215 cfs | 8.86 ft | · | 78°F | 625 ft | Des Plaines |
|
Edwards River Near New Boston, Il
1 day ago · USGS 05466500 |
213 cfs | 13.67 ft | · | 74°F | 561 ft | Flint-Henderson |
|
South Branch Kishwaukee River Nr Fairdale Il, Il
1 day ago · USGS 05439500 |
211 cfs | 2.46 ft | · | 73°F | 736 ft | Kishwaukee |
|
Sangamon River At Rt 48 At Decatur, Il
1 day ago · USGS 05573540 |
188 cfs | 3.27 ft | 75°F | 73°F | 618 ft | Upper Sangamon |
|
Henderson Creek Near Oquawka, Il
1 day ago · USGS 05469000 |
182 cfs | 14.26 ft | · | 74°F | 611 ft | Flint-Henderson |
|
Big Muddy River At Plumfield, Il
1 day ago · USGS 05597000 |
180 cfs | 4.03 ft | · | 74°F | 379 ft | Big Muddy |
|
Hickory Creek At Joliet, Il
1 day ago · USGS 05539000 |
178 cfs | 11.67 ft | · | 74°F | 535 ft | Des Plaines |
|
Shoal Creek Nr Pierron, Il
1 day ago · USGS 05593945 |
175 cfs | 44.42 ft | · | 73°F | 465 ft | Shoal |
|
Salt Creek Near Rowell, Il
1 day ago · USGS 05578500 |
138 cfs | 10.62 ft | 77°F | 73°F | 634 ft | Salt |
|
Cahokia Creek At Edwardsville, Il
1 day ago · USGS 05587900 |
127 cfs | 4.06 ft | · | 74°F | 456 ft | Cahokia-Joachim |
|
Vermilion River At Pontiac, Il
1 day ago · USGS 05554500 |
125 cfs | 3.35 ft | 76°F | 76°F | 661 ft | Vermilion |
|
Silver Creek Near Troy, Il
1 day ago · USGS 05594450 |
119 cfs | 6.06 ft | · | 74°F | 491 ft | Lower Kaskaskia |
|
Des Plaines River Near Gurnee, Il
1 day ago · USGS 05528000 |
115 cfs | 2.29 ft | · | 75°F | 664 ft | Des Plaines |
|
South Fork Sangamon River Nr Rochester, Il
1 day ago · USGS 05576000 |
99 cfs | 7.03 ft | 75°F | 74°F | 518 ft | South Fork Sangamon |
|
South Fork Saline River Nr Carrier Mills, Il
1 day ago · USGS 03382100 |
98 cfs | 3.34 ft | · | 76°F | 415 ft | Saline |
|
Little Calumet River At South Holland, Il
1 day ago · USGS 05536290 |
97 cfs | 5.86 ft | · | 75°F | 596 ft | Chicago |
|
La Moine River At Colmar, Il
1 day ago · USGS 05584500 |
96 cfs | 4.28 ft | · | 74°F | 511 ft | La Moine |
|
Apple River Near Hanover, Il
1 day ago · USGS 05419000 |
94 cfs | 4.14 ft | · | 76°F | 596 ft | Apple-Plum |
|
Middle Fork Vermilion River Above Oakwood, Il
1 day ago · USGS 03336645 |
86 cfs | 1.20 ft | · | 73°F | 560 ft | Vermilion |
|
Salt Creek At Western Springs, Il
1 day ago · USGS 05531500 |
85 cfs | 1.71 ft | · | 76°F | 634 ft | Des Plaines |
|
East Branch Du Page River At Bolingbrook, Il
1 day ago · USGS 05540250 |
84 cfs | 14.92 ft | · | 74°F | 640 ft | Des Plaines |
|
Kaskaskia River At Cooks Mills, Il
1 day ago · USGS 05591200 |
84 cfs | 2.67 ft | · | 72°F | 641 ft | Upper Kaskaskia |
|
Sangamon River At Fisher, Il
1 day ago · USGS 05570910 |
82 cfs | 5.90 ft | 82°F | 72°F | 693 ft | Upper Sangamon |
|
Nippersink Creek Near Spring Grove, Il
1 day ago · USGS 05548280 |
79 cfs | 4.04 ft | · | 74°F | 754 ft | Upper Fox |
|
Kickapoo Creek At Waynesville, Il
1 day ago · USGS 05580000 |
78 cfs | 3.03 ft | · | 72°F | 635 ft | Salt |
|
Lake Fork Near Cornland, Il
1 day ago · USGS 05579500 |
74 cfs | 4.30 ft | · | 73°F | 569 ft | Salt |
|
Elkhorn Creek Near Penrose, Il
1 day ago · USGS 05444000 |
72 cfs | 3.01 ft | · | 75°F | 669 ft | Lower Rock |
|
Silver Creek Near Freeburg, Il
1 day ago · USGS 05594800 |
65 cfs | · | · | 73°F | 418 ft | Lower Kaskaskia |
|
West Branch Du Page River Near Naperville, Il
1 day ago · USGS 05540130 |
64 cfs | 4.23 ft | · | 74°F | 637 ft | Des Plaines |
|
Iroquois River At Iroquois, Il
1 day ago · USGS 05525000 |
59 cfs | 4.83 ft | · | 73°F | 638 ft | Iroquois |
|
Blackberry Creek Near Yorkville, Il
1 day ago · USGS 05551700 |
59 cfs | 3.82 ft | · | 76°F | 617 ft | Lower Fox |
|
Salt Fork Near St. Joseph, Il
1 day ago · USGS 03336900 |
59 cfs | 3.37 ft | · | 73°F | 661 ft | Vermilion |
|
Shoal Creek Near Breese, Il
1 day ago · USGS 05594000 |
56 cfs | 1.37 ft | · | 74°F | 456 ft | Shoal |
|
Sugar Creek At Milford, Il
1 day ago · USGS 05525500 |
53 cfs | 3.38 ft | · | 73°F | 644 ft | Iroquois |
|
Pope Creek Near Keithsburg, Il
1 day ago · USGS 05467000 |
51 cfs | 19.55 ft | · | 73°F | 550 ft | Flint-Henderson |
|
E Br Du Page River Near Downers Grove, Il
1 day ago · USGS 05540160 |
51 cfs | 12.06 ft | · | 75°F | 675 ft | Des Plaines |
|
Blackberry Creek Near Montgomery, Il
1 day ago · USGS 05551675 |
51 cfs | 3.91 ft | · | 73°F | 661 ft | Lower Fox |
|
Thorn Creek At Thornton, Il
1 day ago · USGS 05536275 |
48 cfs | 2.97 ft | · | 75°F | 603 ft | Chicago |
|
Salt Creek At Elmhurst, Il
1 day ago · USGS 05531300 |
48 cfs | 5.05 ft | · | 76°F | 670 ft | Des Plaines |
|
North Fork Embarras River Near Oblong, Il
1 day ago · USGS 03346000 |
44 cfs | 3.44 ft | · | 74°F | 498 ft | Embarras |
|
Mazon River Near Coal City, Il
1 day ago · USGS 05542000 |
43 cfs | 1.47 ft | · | 74°F | 529 ft | Upper Illinois |
|
Thorn Creek At Glenwood, Il
1 day ago · USGS 05536215 |
43 cfs | 2.67 ft | · | 74°F | 628 ft | Chicago |
|
West Br Du Page River Near Warrenville, Il
1 day ago · USGS 05540095 |
38 cfs | 7.70 ft | · | 74°F | 688 ft | Des Plaines |
|
Tyler Creek At Elgin, Il
1 day ago · USGS 05550300 |
37 cfs | 6.03 ft | · | 74°F | 751 ft | Upper Fox |
|
Embarras River Near Camargo, Il
1 day ago · USGS 03343400 |
37 cfs | 3.38 ft | · | 73°F | 644 ft | Embarras |
|
Sinsinawa River Near Menominee, Il
1 day ago · USGS 05414820 |
36 cfs | 4.86 ft | · | 74°F | 645 ft | Apple-Plum |
|
Indian Creek Near Wyoming, Il
1 day ago · USGS 05568800 |
35 cfs | 9.77 ft | · | 73°F | 623 ft | Spoon |
|
Sugar Creek Near Bloomington, Il
1 day ago · USGS 05580950 |
29 cfs | · | · | 73°F | 749 ft | Salt |
|
Ferson Creek Near St. Charles, Il
1 day ago · USGS 05551200 |
29 cfs | 1.71 ft | · | 74°F | 709 ft | Lower Fox |
|
North Branch Chicago River At Niles, Il
1 day ago · USGS 05536000 |
28 cfs | · | · | 77°F | 608 ft | Chicago |
|
Spring Creek At Springfield, Il
1 day ago · USGS 05577500 |
26 cfs | 2.36 ft | · | 74°F | 529 ft | Lower Sangamon |
|
Hurricane Creek Near Mulberry Grove, Il
1 day ago · USGS 05592800 |
24 cfs | 3.74 ft | · | 73°F | 551 ft | Middle Kaskaskia |
|
South Branch Kishwaukee River At Dekalb, Il
1 day ago · USGS 05439000 |
24 cfs | 3.28 ft | · | 73°F | 846 ft | Kishwaukee |
|
Bonpas Creek At Browns, Il
1 day ago · USGS 03378000 |
24 cfs | 2.15 ft | · | 76°F | 451 ft | Lower Wabash |
|
Lake Fork At Atwood, Il
1 day ago · USGS 05590800 |
23 cfs | 2.34 ft | · | 73°F | 661 ft | Upper Kaskaskia |
|
Macoupin Creek Near Kane, Il
1 day ago · USGS 05587000 |
23 cfs | 4.12 ft | · | 72°F | 445 ft | Macoupin |
|
W Branch Du Page River Nr West Chicago, Il
1 day ago · USGS 05539900 |
22 cfs | 3.79 ft | · | 77°F | 723 ft | Des Plaines |
|
Mill Creek At Milan, Il
1 day ago · USGS 05448000 |
21 cfs | 1.84 ft | · | 75°F | 574 ft | Lower Rock |
|
Addison Creek At Bellwood, Il
1 day ago · USGS 05532000 |
19 cfs | 1.67 ft | · | 77°F | 627 ft | Des Plaines |
|
Little Wabash River Near Effingham, Il
1 day ago · USGS 03378635 |
18 cfs | 10.59 ft | · | 73°F | 542 ft | Little Wabash |
|
Midlothian Creek At Oak Forest, Il
1 day ago · USGS 05536340 |
17 cfs | 1.87 ft | · | 75°F | 629 ft | Chicago |
|
West Okaw River Near Lovington, Il
1 day ago · USGS 05591700 |
17 cfs | 4.03 ft | · | 73°F | 639 ft | Upper Kaskaskia |
|
Skillet Fork At Wayne City, Il
1 day ago · USGS 03380500 |
17 cfs | 5.09 ft | · | 76°F | 387 ft | Skillet |
|
Flag Creek Near Willow Springs, Il
1 day ago · USGS 05533000 |
16 cfs | 3.30 ft | · | 75°F | 610 ft | Des Plaines |
|
Richland Creek Near Hecker, Il
1 day ago · USGS 05595200 |
16 cfs | 27.43 ft | · | 73°F | 403 ft | Lower Kaskaskia |
|
St. Joseph Creek At U.S. Route 34 At Lisle, Il
1 day ago · USGS 05540195 |
14 cfs | 4.52 ft | · | 75°F | 673 ft | Des Plaines |
|
Mill Creek Near Batavia, Il
1 day ago · USGS 05551330 |
14 cfs | 2.40 ft | · | 74°F | 690 ft | Lower Fox |
|
Mill Creek At Old Mill Creek, Il
1 day ago · USGS 05527950 |
12 cfs | 6.04 ft | · | 75°F | 677 ft | Des Plaines |
|
Bear Creek Near Marcelline, Il
1 day ago · USGS 05495500 |
11 cfs | 2.50 ft | · | 75°F | 523 ft | Bear-Wyaconda |
|
Nippersink Creek Above Wonder Lake, Il
1 day ago · USGS 05548105 |
11 cfs | 4.64 ft | · | 73°F | 806 ft | Upper Fox |
|
Little Crooked Creek Near New Minden, Il
1 day ago · USGS 05593575 |
11 cfs | 5.55 ft | · | 74°F | 485 ft | Middle Kaskaskia |
|
Farm Creek At Farmdale, Il
1 day ago · USGS 05560500 |
10 cfs | · | · | 73°F | 541 ft | Lower Illinois-Senachwine Lake |
|
Deer Creek Near Chicago Heights, Il
1 day ago · USGS 05536235 |
9 cfs | 3.31 ft | · | 74°F | 628 ft | Chicago |
|
Skokie River Near Highland Park, Il
1 day ago · USGS 05535070 |
8 cfs | 2.74 ft | · | 77°F | 632 ft | Chicago |
|
Rayse Creek Near Waltonville, Il
1 day ago · USGS 05595730 |
7 cfs | 1.46 ft | · | 74°F | 424 ft | Big Muddy |
|
Kress Creek At West Chicago, Il
1 day ago · USGS 05540060 |
7 cfs | 4.16 ft | · | 77°F | 706 ft | Des Plaines |
|
Whitley Creek Near Allenville, Il
1 day ago · USGS 05591550 |
7 cfs | 2.73 ft | · | 72°F | 625 ft | Upper Kaskaskia |
|
Spring Brook At 87th Street Near Naperville, Il
1 day ago · USGS 05540275 |
7 cfs | 2.94 ft | · | 74°F | 652 ft | Des Plaines |
|
Robinson Creek Near Shelbyville, Il
1 day ago · USGS 05592050 |
7 cfs | 1.82 ft | · | 72°F | 616 ft | Upper Kaskaskia |
|
Lusk Creek Near Eddyville, Il
1 day ago · USGS 03384450 |
6 cfs | 2.67 ft | · | 75°F | 388 ft | Lower Ohio-Bay |
|
Poplar Creek At Elgin, Il
1 day ago · USGS 05550500 |
6 cfs | 1.13 ft | · | 74°F | 730 ft | Upper Fox |
|
East Fork Shoal Creek Near Coffeen, Il
1 day ago · USGS 05593900 |
6 cfs | 2.11 ft | · | 72°F | 590 ft | Shoal |
|
North Branch Chicago River At Deerfield, Il
1 day ago · USGS 05534500 |
6 cfs | 4.41 ft | · | 78°F | 642 ft | Chicago |
|
Butterfield Creek At Flossmoor, Il
1 day ago · USGS 05536255 |
5 cfs | 4.04 ft | · | 74°F | 635 ft | Chicago |
|
Boone Creek Near Mc Henry, Il
1 day ago · USGS 05549000 |
5 cfs | 1.03 ft | · | 74°F | 779 ft | Upper Fox |
|
Wf Of Nb Chicago River At Northbrook Il, Il
1 day ago · USGS 05535500 |
4 cfs | · | · | 78°F | 653 ft | Chicago |
|
Long Run Near Lemont, Il
1 day ago · USGS 05537500 |
4 cfs | · | · | 74°F | 641 ft | Des Plaines |
|
Salt Creek At Rolling Meadows, Il
1 day ago · USGS 05530990 |
4 cfs | 2.18 ft | · | 77°F | 694 ft | Des Plaines |
|
Casey Fork At Mount Vernon, Il
1 day ago · USGS 05595820 |
4 cfs | 1.58 ft | · | 74°F | 441 ft | Big Muddy |
|
Indian Creek At Wanda, Il
1 day ago · USGS 05588000 |
3 cfs | · | · | 74°F | 447 ft | Cahokia-Joachim |
|
Tinley Creek Near Palos Park, Il
1 day ago · USGS 05536500 |
3 cfs | 2.55 ft | · | 75°F | 608 ft | Chicago |
|
Boneyard Creek At Lincoln Ave At Urbana, Il
1 day ago · USGS 03337100 |
3 cfs | 7.49 ft | · | 73°F | 714 ft | Vermilion |
|
Des Plaines River At Russell, Il
1 day ago · USGS 05527800 |
3 cfs | 3.29 ft | · | 75°F | 667 ft | Des Plaines |
|
Crab Orchard Creek Near Marion, Il
1 day ago · USGS 05597500 |
3 cfs | · | · | 74°F | 430 ft | Big Muddy |
|
Sawmill Creek Near Lemont, Il
1 day ago · USGS 05533400 |
2 cfs | 8.31 ft | · | 75°F | 647 ft | Des Plaines |
|
East Fork Kaskaskia River Near Sandoval, Il
1 day ago · USGS 05592900 |
2 cfs | 2.81 ft | · | 74°F | 491 ft | Middle Kaskaskia |
|
Hickory Creek Nr Brownstown, Il
1 day ago · USGS 05592575 |
2 cfs | 4.36 ft | · | 73°F | 507 ft | Middle Kaskaskia |
|
Boneyard Creek At Urbana, Il
1 day ago · USGS 03337000 |
2 cfs | 10.28 ft | · | 73°F | 717 ft | Vermilion |
|
Skokie River At Lake Forest, Il
1 day ago · USGS 05535000 |
2 cfs | 1.93 ft | · | 77°F | 664 ft | Chicago |
|
Buffalo Creek Near Wheeling, Il
1 day ago · USGS 05528500 |
1 cfs | 1.39 ft | · | 77°F | 667 ft | Des Plaines |
|
Weller Creek At Des Plaines, Il
1 day ago · USGS 05530000 |
1 cfs | · | · | 77°F | 648 ft | Des Plaines |
|
Mc Donald Creek Near Mount Prospect, Il
1 day ago · USGS 05529500 |
0 cfs | · | · | 78°F | 641 ft | Des Plaines |
|
Fondulac Creek Near East Peoria, Il
1 day 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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