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Flow report

Illinois River Levels & Streamflow

As of Nov 6, 2026, Illinois rivers are running at 95% of normal across 150 USGS gauges — the highest is 137,000 cfs on the Mississippi River At Chester. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Illinois.

USGS gauges
150
State percent normal
95%
0%normal200%
Paddle runs
0
Updated
Nov 6
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Flow briefing · Nov 6, 2026

Illinois river conditions today

Where rivers are running versus normal, what’s spiking and what’s coming — refreshed daily from USGS and NOAA.

Streamflow levels across Illinois are currently 95% of normal, with the Mississippi River At Chester reporting the highest discharge in the state at 137,000 cfs and a gauge stage of 7.67 ft.

Meanwhile, the South Branch Kishwaukee River Nr Fairdale Il is seeing a spike today — up 281% 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.

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Active weather warnings for Illinois

# Illinois Storm Center Natural Disaster Report

Multiple Freeze Warnings and Frost Advisories are in effect across Illinois from November 6-8, with sub-freezing temperatures expected to plummet to the upper 20s and low 30s. Southern, south-central, southwest, and west-central Illinois regions are most severely impacted, including areas around cities like Springfield, Carbondale, and surrounding communities. Residents should take immediate precautions to protect sensitive vegetation, crops, and outdoor plumbing from frost and freeze damage. The hard freezes are expected to end the growing season, so farmers and gardeners should secure vulnerable plants and irrigation systems. Conditions will be most critical from midnight tonight through Saturday morning, with additional freeze watches continuing through Sunday morning. Prepare now by covering sensitive plants and draining outdoor water sources to prevent costly damage.

Source: National Weather Service

Illinois vs normal

How Illinois’s rivers compare to normal

Every gauge placed by its own percent of normal, and three years of the statewide trend.

Where every gauge actually sits

One dot per Illinois streamgauge, placed by its own percent of normal. The state average is a single line through all of it.

State average 95%
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.

Illinois streamflow, three water years

Statewide percent of normal, every day since Nov 2023. The dotted line is normal.

95% of normal today
+51pts vs this day last year (44%)
270of 366 days below normal, past year
316% 3-year peak · Oct 2026 · above the axis
50% 100% normal 150% 200%
Nov 2023 202420252026 Nov 6, 2026

799 daily readings from 146 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 axis tops out at 225%: 12 readings above that — including the 316% peak in Oct 2026 — are drawn along the top edge, so a few flood days cannot flatten three years of everything else. The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.

Illinois flow report

150 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
Mississippi River At Chester, Il
8 hours ago · USGS 07020500
143,000 cfs 8.19 ft · 44°F 358 ft Upper Mississippi-Cape Girardeau
Mississippi River At Thebes, Il
8 hours ago · USGS 07022000
138,000 cfs 11.89 ft · 50°F 321 ft Upper Mississippi-Cape Girardeau
Wabash River At Mt. Carmel, Il
8 hours ago · USGS 03377500
7,620 cfs 3.54 ft · 44°F 391 ft Lower Wabash
Illinois River At Henry, Il
8 hours ago · USGS 05558300
7,300 cfs 14.70 ft 58°F 38°F 440 ft Lower Illinois-Senachwine Lake
Illinois River At Valley City, Il
8 hours ago · USGS 05586100
7,020 cfs 2.29 ft · 44°F 433 ft Lower Illinois
Rock River At Como, Il
8 hours ago · USGS 05443500
5,980 cfs 4.57 ft · 36°F 618 ft Lower Rock
Illinois River At Kingston Mines, Il
8 hours ago · USGS 05568500
5,960 cfs 3.79 ft · 41°F 441 ft Lower Illinois-Lake Chautauqua
Rock River At Byron, Il
8 hours ago · USGS 05440700
5,520 cfs 6.72 ft 57°F 35°F 677 ft Lower Rock
Rock River Near Joslin, Il
8 hours ago · USGS 05446500
5,290 cfs 6.29 ft 34°F 38°F 588 ft Lower Rock
Illinois River At Marseilles, Il
8 hours ago · USGS 05543500
4,580 cfs 11.39 ft · 38°F 459 ft Upper Illinois
Rock River At Rockton, Il
8 hours ago · USGS 05437500
4,000 cfs 4.68 ft · 38°F 712 ft Lower Rock
Fox River At Dayton, Il
8 hours ago · USGS 05552500
1,930 cfs 6.74 ft · 38°F 472 ft Lower Fox
Pecatonica River Nr Shirland, Il
9 hours ago · USGS 05437050
1,740 cfs 5.83 ft · 38°F 718 ft Pecatonica
Kankakee River Near Wilmington, Il
8 hours ago · USGS 05527500
1,590 cfs 1.34 ft 56°F 42°F 511 ft Kankakee
Kankakee River At Momence, Il
8 hours ago · USGS 05520500
1,330 cfs 1.83 ft · 39°F 610 ft Kankakee
Fox River At South Elgin, Il
8 hours ago · USGS 05551000
1,230 cfs 12.72 ft · 39°F 696 ft Lower Fox
Fox River At Montgomery, Il
9 hours ago · USGS 05551540
1,210 cfs 11.57 ft · 37°F 613 ft Lower Fox
Fox River At Algonquin (Tailwater), Il
8 hours ago · USGS 05550001
1,180 cfs 6.28 ft 32°F 36°F 727 ft Upper Fox
Pecatonica River At Freeport, Il
8 hours ago · USGS 05435500
1,150 cfs 5.95 ft · 34°F 754 ft Pecatonica
Kishwaukee River Near Perryville, Il
8 hours ago · USGS 05440000
1,030 cfs 6.75 ft · 36°F 701 ft Kishwaukee
Spoon River At Seville, Il
8 hours ago · USGS 05570000
1,030 cfs 8.10 ft 53°F 40°F 498 ft Spoon
Spoon River At London Mills, Il
8 hours ago · USGS 05569500
842 cfs 4.80 ft 77°F 39°F 557 ft Spoon
Green River Near Geneseo, Il
8 hours ago · USGS 05447500
740 cfs 4.44 ft 58°F 38°F 586 ft Green
Kaskaskia River At New Athens, Il
9 hours ago · USGS 05595000
647 cfs 68.65 ft 73°F 49°F 403 ft Lower Kaskaskia
Kishwaukee River At Belvidere, Il
8 hours ago · USGS 05438500
466 cfs 2.20 ft · 38°F 740 ft Kishwaukee
Sangamon River Near Oakford, Il
8 hours ago · USGS 05583000
415 cfs 3.43 ft 93°F 42°F 457 ft Lower Sangamon
Henderson Creek Near Oquawka, Il
8 hours ago · USGS 05469000
398 cfs 15.43 ft · 39°F 611 ft Flint-Henderson
South Branch Kishwaukee River Nr Fairdale Il, Il
8 hours ago · USGS 05439500
343 cfs 3.12 ft · 35°F 736 ft Kishwaukee
Des Plaines River At Riverside, Il
8 hours ago · USGS 05532500
334 cfs 2.18 ft · 38°F 598 ft Des Plaines
Du Page River At Shorewood, Il
9 hours ago · USGS 05540500
310 cfs 10.56 ft · 38°F 566 ft Des Plaines
Edwards River Near New Boston, Il
8 hours ago · USGS 05466500
236 cfs 13.64 ft · 38°F 561 ft Flint-Henderson
Salt Creek Near Greenview, Il
8 hours ago · USGS 05582000
229 cfs 1.39 ft 83°F 42°F 481 ft Salt
Big Bureau Creek At Princeton, Il
8 hours ago · USGS 05556500
167 cfs 3.23 ft · 38°F 603 ft Lower Illinois-Senachwine Lake
Nippersink Creek Near Spring Grove, Il
9 hours ago · USGS 05548280
159 cfs 4.66 ft · 36°F 754 ft Upper Fox
Iroquois River Near Chebanse, Il
8 hours ago · USGS 05526000
152 cfs 2.61 ft · 39°F 600 ft Iroquois
Iroquois River At Iroquois, Il
9 hours ago · USGS 05525000
143 cfs 5.64 ft · 40°F 638 ft Iroquois
Sangamon River At Petersburg, Il
8 hours ago · USGS 05578000
140 cfs 4.38 ft 77°F 42°F 489 ft Lower Sangamon
Mackinaw River Near Green Valley, Il
8 hours ago · USGS 05568000
131 cfs 13.81 ft 75°F 41°F 501 ft Mackinaw
Apple River Near Hanover, Il
8 hours ago · USGS 05419000
121 cfs 4.29 ft · 36°F 596 ft Apple-Plum
Des Plaines River Near Gurnee, Il
8 hours ago · USGS 05528000
118 cfs 2.06 ft · 39°F 664 ft Des Plaines
Vermilion River Near Danville, Il
8 hours ago · USGS 03339000
113 cfs 2.53 ft 64°F 43°F 517 ft Vermilion
La Moine River At Ripley, Il
8 hours ago · USGS 05585000
113 cfs 5.24 ft · 42°F 467 ft La Moine
Sangamon River At Riverton, Il
8 hours ago · USGS 05576500
109 cfs 2.36 ft · 43°F 519 ft Lower Sangamon
Pope Creek Near Keithsburg, Il
8 hours ago · USGS 05467000
103 cfs 19.55 ft · 38°F 550 ft Flint-Henderson
Kaskaskia River Near Venedy Station, Il
8 hours ago · USGS 05594100
100 cfs · · 48°F 395 ft Lower Kaskaskia
West Branch Du Page River Near Naperville, Il
8 hours ago · USGS 05540130
99 cfs 4.27 ft · 37°F 637 ft Des Plaines
South Branch Kishwaukee River At Dekalb, Il
8 hours ago · USGS 05439000
99 cfs 3.90 ft · 39°F 846 ft Kishwaukee
Vermilion River Near Leonore, Il
8 hours ago · USGS 05555300
95 cfs 3.50 ft 76°F 38°F 535 ft Vermilion
Salt Creek At Western Springs, Il
8 hours ago · USGS 05531500
93 cfs 1.75 ft · 42°F 634 ft Des Plaines
East Branch Du Page River At Bolingbrook, Il
8 hours ago · USGS 05540250
92 cfs 15.00 ft · 38°F 640 ft Des Plaines
Elkhorn Creek Near Penrose, Il
8 hours ago · USGS 05444000
88 cfs 3.22 ft · 36°F 669 ft Lower Rock
Kaskaskia River At Shelbyville, Il
8 hours ago · USGS 05592000
79 cfs 6.50 ft · 44°F 568 ft Upper Kaskaskia
Kaskaskia River At Vandalia, Il
8 hours ago · USGS 05592500
79 cfs 2.92 ft · 47°F 537 ft Middle Kaskaskia
La Moine River At Colmar, Il
8 hours ago · USGS 05584500
76 cfs 4.18 ft · 39°F 511 ft La Moine
Mackinaw River Near Congerville, Il
8 hours ago · USGS 05567500
69 cfs 1.22 ft 47°F 40°F 611 ft Mackinaw
Kaskaskia River Near Cowden, Il
8 hours ago · USGS 05592100
68 cfs 2.41 ft · 45°F 553 ft Upper Kaskaskia
Nippersink Creek Above Wonder Lake, Il
8 hours ago · USGS 05548105
65 cfs 5.15 ft · 38°F 806 ft Upper Fox
Kaskaskia River At Carlyle, Il
8 hours ago · USGS 05593000
59 cfs 5.57 ft · 48°F 413 ft Middle Kaskaskia
Little Calumet River At South Holland, Il
8 hours ago · USGS 05536290
58 cfs 5.48 ft · 39°F 596 ft Chicago
Silver Creek Near Freeburg, Il
8 hours ago · USGS 05594800
56 cfs · · 48°F 418 ft Lower Kaskaskia
Embarras River At Lawrenceville, Il
8 hours ago · USGS 03346500
56 cfs 16.59 ft 61°F 49°F 424 ft Embarras
Ferson Creek Near St. Charles, Il
8 hours ago · USGS 05551200
55 cfs 2.13 ft · 36°F 709 ft Lower Fox
Blackberry Creek Near Yorkville, Il
8 hours ago · USGS 05551700
55 cfs 3.70 ft · 37°F 617 ft Lower Fox
Des Plaines River At Russell, Il
8 hours ago · USGS 05527800
53 cfs 4.09 ft · 39°F 667 ft Des Plaines
Salt Creek At Elmhurst, Il
8 hours ago · USGS 05531300
50 cfs 5.11 ft · 41°F 670 ft Des Plaines
Indian Creek Near Wyoming, Il
8 hours ago · USGS 05568800
50 cfs 9.90 ft · 39°F 623 ft Spoon
West Br Du Page River Near Warrenville, Il
8 hours ago · USGS 05540095
49 cfs 7.71 ft · 37°F 688 ft Des Plaines
Hickory Creek At Joliet, Il
8 hours ago · USGS 05539000
48 cfs 10.79 ft · 42°F 535 ft Des Plaines
Big Muddy River At Plumfield, Il
8 hours ago · USGS 05597000
45 cfs 2.47 ft · 49°F 379 ft Big Muddy
Blackberry Creek Near Montgomery, Il
8 hours ago · USGS 05551675
43 cfs 3.79 ft · 37°F 661 ft Lower Fox
North Branch Chicago River At Niles, Il
8 hours ago · USGS 05536000
42 cfs · · 41°F 608 ft Chicago
Embarras River At Ste. Marie, Il
8 hours ago · USGS 03345500
41 cfs · · 48°F 499 ft Embarras
E Br Du Page River Near Downers Grove, Il
8 hours ago · USGS 05540160
40 cfs 12.02 ft · 41°F 675 ft Des Plaines
Big Muddy River At Rte 127 At Murphysboro, Il
8 hours ago · USGS 05599490
39 cfs 3.28 ft 62°F 51°F 357 ft Big Muddy
Thorn Creek At Thornton, Il
8 hours ago · USGS 05536275
39 cfs 2.79 ft · 39°F 603 ft Chicago
Thorn Creek At Glenwood, Il
8 hours ago · USGS 05536215
38 cfs 2.72 ft · 39°F 628 ft Chicago
Little Wabash River At Carmi, Il
9 hours ago · USGS 03381500
36 cfs 2.16 ft · 47°F 419 ft Little Wabash
Cache River At Forman, Il
9 hours ago · USGS 03612000
35 cfs 9.76 ft · 48°F 367 ft Lower Ohio
Sangamon River At Monticello, Il
9 hours ago · USGS 05572000
34 cfs 4.85 ft 77°F 42°F 646 ft Upper Sangamon
Vermilion River At Pontiac, Il
8 hours ago · USGS 05554500
33 cfs 2.86 ft 77°F 39°F 661 ft Vermilion
Mazon River Near Coal City, Il
8 hours ago · USGS 05542000
31 cfs 1.38 ft · 42°F 529 ft Upper Illinois
Mill Creek At Old Mill Creek, Il
9 hours ago · USGS 05527950
30 cfs 6.54 ft · 39°F 677 ft Des Plaines
Sugar Creek Near Bloomington, Il
8 hours ago · USGS 05580950
29 cfs · · 40°F 749 ft Salt
Flag Creek Near Willow Springs, Il
8 hours ago · USGS 05533000
27 cfs 3.48 ft · 38°F 610 ft Des Plaines
Mill Creek At Milan, Il
9 hours ago · USGS 05448000
26 cfs 1.98 ft · 38°F 574 ft Lower Rock
Kickapoo Creek At Waynesville, Il
8 hours ago · USGS 05580000
23 cfs 2.61 ft · 41°F 635 ft Salt
South Fork Saline River Nr Carrier Mills, Il
8 hours ago · USGS 03382100
23 cfs 2.74 ft · 48°F 415 ft Saline
W Branch Du Page River Nr West Chicago, Il
8 hours ago · USGS 05539900
23 cfs 3.88 ft · 40°F 723 ft Des Plaines
Sugar Creek At Milford, Il
9 hours ago · USGS 05525500
22 cfs 2.83 ft · 40°F 644 ft Iroquois
Middle Fork Vermilion River Above Oakwood, Il
8 hours ago · USGS 03336645
21 cfs · · 42°F 560 ft Vermilion
Richland Creek Near Hecker, Il
8 hours ago · USGS 05595200
21 cfs 27.38 ft · 49°F 403 ft Lower Kaskaskia
Sangamon River At Fisher, Il
8 hours ago · USGS 05570910
21 cfs 4.85 ft 79°F 42°F 693 ft Upper Sangamon
Shoal Creek Near Breese, Il
8 hours ago · USGS 05594000
19 cfs 1.12 ft · 48°F 456 ft Shoal
Sinsinawa River Near Menominee, Il
8 hours ago · USGS 05414820
18 cfs 4.75 ft · 36°F 645 ft Apple-Plum
Tyler Creek At Elgin, Il
8 hours ago · USGS 05550300
18 cfs 5.86 ft · 39°F 751 ft Upper Fox
Salt Creek Near Rowell, Il
8 hours ago · USGS 05578500
18 cfs 9.19 ft 77°F 42°F 634 ft Salt
Addison Creek At Bellwood, Il
8 hours ago · USGS 05532000
17 cfs 1.63 ft · 42°F 627 ft Des Plaines
Kaskaskia River At Cooks Mills, Il
8 hours ago · USGS 05591200
17 cfs 1.44 ft · 44°F 641 ft Upper Kaskaskia
Cahokia Creek At Edwardsville, Il
8 hours ago · USGS 05587900
15 cfs 3.59 ft · 46°F 456 ft Cahokia-Joachim
Salt Fork Near St. Joseph, Il
9 hours ago · USGS 03336900
15 cfs 3.20 ft · 42°F 661 ft Vermilion
Boone Creek Near Mc Henry, Il
8 hours ago · USGS 05549000
13 cfs 1.16 ft · 38°F 779 ft Upper Fox
Macoupin Creek Near Kane, Il
8 hours ago · USGS 05587000
12 cfs 3.86 ft · 45°F 445 ft Macoupin
Shoal Creek Nr Pierron, Il
8 hours ago · USGS 05593945
11 cfs 42.03 ft · 47°F 465 ft Shoal
Lake Fork Near Cornland, Il
8 hours ago · USGS 05579500
11 cfs 3.42 ft · 43°F 569 ft Salt
Long Run Near Lemont, Il
9 hours ago · USGS 05537500
11 cfs 1.00 ft · 42°F 641 ft Des Plaines
Tinley Creek Near Palos Park, Il
8 hours ago · USGS 05536500
9 cfs 2.68 ft · 43°F 608 ft Chicago
Little Wabash River Below Clay City, Il
8 hours ago · USGS 03379500
9 cfs 3.82 ft · 48°F 477 ft Little Wabash
Bear Creek Near Marcelline, Il
8 hours ago · USGS 05495500
8 cfs 2.49 ft · 42°F 523 ft Bear-Wyaconda
Butterfield Creek At Flossmoor, Il
8 hours ago · USGS 05536255
8 cfs 4.17 ft · 39°F 635 ft Chicago
Mill Creek Near Batavia, Il
9 hours ago · USGS 05551330
7 cfs 2.33 ft · 36°F 690 ft Lower Fox
Farm Creek At Farmdale, Il
9 hours ago · USGS 05560500
6 cfs · · 40°F 541 ft Lower Illinois-Senachwine Lake
Sawmill Creek Near Lemont, Il
9 hours ago · USGS 05533400
6 cfs 8.58 ft · 38°F 647 ft Des Plaines
Deer Creek Near Chicago Heights, Il
9 hours ago · USGS 05536235
5 cfs 3.21 ft · 39°F 628 ft Chicago
Salt Creek At Rolling Meadows, Il
8 hours ago · USGS 05530990
5 cfs 2.34 ft · 40°F 694 ft Des Plaines
Sangamon River At Rt 48 At Decatur, Il
8 hours ago · USGS 05573540
5 cfs 1.80 ft 82°F 43°F 618 ft Upper Sangamon
South Fork Sangamon River Nr Rochester, Il
8 hours ago · USGS 05576000
5 cfs 5.04 ft 81°F 43°F 518 ft South Fork Sangamon
Wf Of Nb Chicago River At Northbrook Il, Il
9 hours ago · USGS 05535500
5 cfs · · 41°F 653 ft Chicago
Midlothian Creek At Oak Forest, Il
8 hours ago · USGS 05536340
5 cfs 1.68 ft · 39°F 629 ft Chicago
North Fork Embarras River Near Oblong, Il
9 hours ago · USGS 03346000
4 cfs 2.07 ft · 47°F 498 ft Embarras
Poplar Creek At Elgin, Il
9 hours ago · USGS 05550500
4 cfs 1.11 ft · 39°F 730 ft Upper Fox
Silver Creek Near Troy, Il
8 hours ago · USGS 05594450
4 cfs 3.81 ft · 47°F 491 ft Lower Kaskaskia
Skokie River Near Highland Park, Il
8 hours ago · USGS 05535070
4 cfs 3.24 ft · 42°F 632 ft Chicago
Spring Brook At 87th Street Near Naperville, Il
8 hours ago · USGS 05540275
3 cfs 2.93 ft · 41°F 652 ft Des Plaines
Hurricane Creek Near Mulberry Grove, Il
8 hours ago · USGS 05592800
3 cfs 3.75 ft · 47°F 551 ft Middle Kaskaskia
Skokie River At Lake Forest, Il
8 hours ago · USGS 05535000
3 cfs 2.08 ft · 41°F 664 ft Chicago
Kress Creek At West Chicago, Il
8 hours ago · USGS 05540060
3 cfs 4.01 ft · 40°F 706 ft Des Plaines
Casey Fork At Mount Vernon, Il
8 hours ago · USGS 05595820
2 cfs 1.64 ft · 49°F 441 ft Big Muddy
Weller Creek At Des Plaines, Il
9 hours ago · USGS 05530000
2 cfs · · 41°F 648 ft Des Plaines
Des Plaines River Near Des Plaines, Il
8 hours ago · USGS 05529000
2 cfs 8.28 ft · 37°F 625 ft Des Plaines
North Branch Chicago River At Deerfield, Il
8 hours ago · USGS 05534500
2 cfs 4.19 ft · 41°F 642 ft Chicago
Boneyard Creek At Lincoln Ave At Urbana, Il
8 hours ago · USGS 03337100
2 cfs 7.47 ft · 42°F 714 ft Vermilion
St. Joseph Creek At U.S. Route 34 At Lisle, Il
8 hours ago · USGS 05540195
2 cfs 4.44 ft · 37°F 673 ft Des Plaines
Indian Creek At Wanda, Il
8 hours ago · USGS 05588000
2 cfs · · 47°F 447 ft Cahokia-Joachim
Boneyard Creek At Urbana, Il
8 hours ago · USGS 03337000
2 cfs 10.18 ft · 42°F 717 ft Vermilion
Little Wabash River Near Effingham, Il
8 hours ago · USGS 03378635
1 cfs 10.45 ft · 46°F 542 ft Little Wabash
Crab Orchard Creek Near Marion, Il
9 hours ago · USGS 05597500
1 cfs · · 48°F 430 ft Big Muddy
Mc Donald Creek Near Mount Prospect, Il
9 hours ago · USGS 05529500
1 cfs · · 40°F 641 ft Des Plaines
Little Crooked Creek Near New Minden, Il
8 hours ago · USGS 05593575
1 cfs 4.90 ft · 49°F 485 ft Middle Kaskaskia
Spring Creek At Springfield, Il
8 hours ago · USGS 05577500
1 cfs 1.56 ft · 43°F 529 ft Lower Sangamon
Buffalo Creek Near Wheeling, Il
8 hours ago · USGS 05528500
1 cfs 1.35 ft · 40°F 667 ft Des Plaines
Lusk Creek Near Eddyville, Il
8 hours ago · USGS 03384450
0 cfs 2.01 ft · 48°F 388 ft Lower Ohio-Bay
Bonpas Creek At Browns, Il
8 hours ago · USGS 03378000
0 cfs 1.36 ft · 46°F 451 ft Lower Wabash
East Fork Kaskaskia River Near Sandoval, Il
8 hours ago · USGS 05592900
0 cfs 2.42 ft · 48°F 491 ft Middle Kaskaskia
East Fork Shoal Creek Near Coffeen, Il
9 hours ago · USGS 05593900
0 cfs 1.97 ft · 45°F 590 ft Shoal
Hickory Creek Nr Brownstown, Il
8 hours ago · USGS 05592575
0 cfs 3.87 ft · 47°F 507 ft Middle Kaskaskia
Skillet Fork At Wayne City, Il
9 hours ago · USGS 03380500
0 cfs 4.54 ft · 48°F 387 ft Skillet
Fondulac Creek Near East Peoria, Il
8 hours ago · USGS 05561500
0 cfs 2.12 ft · 41°F 521 ft Lower Illinois-Senachwine Lake
Rayse Creek Near Waltonville, Il
8 hours ago · USGS 05595730
0 cfs 1.13 ft · 49°F 424 ft Big Muddy
Whitley Creek Near Allenville, Il
8 hours ago · USGS 05591550
0 cfs 2.22 ft · 44°F 625 ft Upper Kaskaskia
West Okaw River Near Lovington, Il
8 hours ago · USGS 05591700
0 cfs 2.08 ft · 43°F 639 ft Upper Kaskaskia
Flow report FAQ

About Illinois streamflow

What are river levels like in Illinois right now?

As of November 6, 2026, Illinois rivers are running at 95% of normal across 150 USGS streamgauges, and the Mississippi River At Chester is reporting the highest discharge at 137,000 cfs. The full sortable gauge table is below.

Which Illinois river is running highest right now?

As of November 6, 2026, the highest discharge in Illinois is 137,000 cfs on the Mississippi River At Chester. See the sortable gauge table for the full statewide ranking.

Are Illinois rivers high or low right now?

Compare the statewide percent-of-normal on this page: above 100% means Illinois 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 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.