River Levels
Illinois river levels
Live streamflow for 115 gauged Illinois reaches, highest first. Where a gauge has a long enough record, the reading is placed against its own history for today's date.
66% of gauged Illinois rivers are running in their normal range for the date, as of October 26, 2026.
Of 58 gauged reaches with a long enough USGS record, 13 are below normal (5 of them much below), 38 are in the normal range, and 7 are above normal (1 of them much above). Normal means the middle half of that gauge's own history for this calendar date.
To cite: Angling Hubs analysis of USGS streamflow, anglinghubs.com/flows/illinois.
| River | Flow | Usually today | Vs normal | NWS flood status |
|---|---|---|---|---|
| Mississippi RiverMississippi River at Thebes, IL | 168,000 cfs14.87 ft | 119,000 cfs | Normal69th percentile · 93 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Mississippi RiverMississippi River at Chester, IL | 162,000 cfs10.17 ft | Not recorded | No historical record | No NWS flood stage |
| Mississippi RiverMississippi River at Grafton, IL | 109,000 cfs15.91 ft | 80,500 cfs | Normal73rd percentile · 40 yr record | Below flood stageNWS forecast: 15.9 ft by Mon 1 AM, below flood stage. |
| Illinois RiverIllinois River at Valley City, IL | 11,000 cfs3.43 ft | Not recorded | No historical record | Below flood stageNWS forecast: 3.4 ft by Mon 1 AM, below flood stage. |
| Wabash RiverWabash River at MT. Carmel, IL | 8,130 cfs3.69 ft | Not recorded | No historical record | Below flood stageNWS forecast: 3.7 ft by Mon 1 AM, below flood stage. |
| Illinois RiverIllinois River at Kingston Mines, IL | 6,680 cfs4.39 ft | Not recorded | No historical record | No NWS flood stage |
| Illinois RiverIllinois River at Henry, IL | 6,500 cfs14.66 ft | 8,160 cfs | Normal35th percentile · 45 yr record | Below flood stageNWS forecast: 14.7 ft by Mon 1 AM, below flood stage. |
| Rock RiverRock River near Joslin, IL | 6,220 cfs6.62 ft | 4,080 cfs | Normal69th percentile · 87 yr record | Below flood stageNWS forecast: 6.6 ft by Mon 1 AM, below flood stage. |
| Rock RiverRock River at Como, IL | 5,910 cfs4.54 ft | Not recorded | No historical record | No NWS flood stage |
| Illinois RiverIllinois River at Morris, IL | 5,450 cfs5.25 ft | 5,430 cfs | Normal50th percentile · 10 yr record | Below flood stageNWS forecast: 5 ft by Mon 1 AM, below flood stage. |
| Rock RiverRock River at Byron, IL | 5,340 cfs6.64 ft | 4,420 cfs | Normal57th percentile · 26 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Rock RiverRock River at Rockton, IL | 4,100 cfs4.74 ft | 3,110 cfs | Normal65th percentile · 87 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Kankakee RiverKankakee River near Wilmington, IL | 1,820 cfs1.43 ft | 1,580 cfs | Normal54th percentile · 91 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Des Plaines RiverDes Plaines River at Route 53 at Joliet, IL | 1,400 cfs538.96 ft | 2,780 cfs | Much below normal7th percentile · 21 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Fox RiverFox River at Montgomery, IL | 1,140 cfs11.53 ft | 810 cfs | Normal58th percentile · 24 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Fox RiverFox River (tailwater) at Algonquin, IL | 973 cfs5.94 ft | 687 cfs | Normal57th percentile · 17 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Pecatonica RiverPecatonica River at Freeport, IL | 971 cfs5.18 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Green RiverGreen River near Geneseo, IL | 799 cfs4.24 ft | 241 cfs | Above normal81st percentile · 90 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Spoon RiverSpoon River at Seville, IL | 791 cfs7.43 ft | Not recorded | No historical record | No NWS flood stage |
| Spoon RiverSpoon River at London Mills, IL | 595 cfs4.03 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Kaskaskia RiverKaskaskia River at New Athens, IL | 495 cfs68.70 ft | Not recorded | No historical record | No NWS flood stage |
| Sangamon RiverSangamon River near Oakford, IL | 372 cfs3.35 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Henderson CreekHenderson Creek near Oquawka, IL | 341 cfs15.16 ft | 46 cfs | Much above normal90th percentile · 92 yr record | Below flood stageFlood stage 21.5 ft. NWS reads 15.15 ft here. |
| Edwards RiverEdwards River near New Boston, IL | 254 cfs13.75 ft | Not recorded | No historical record | Below flood stageFlood stage 17 ft. NWS reads 13.9 ft here. |
| Iroquois RiverIroquois River near Chebanse, IL | 200 cfs2.78 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| La Moine RiverLA Moine River at Ripley, IL | 129 cfs5.35 ft | Not recorded | No historical record | No NWS flood stage |
| Nippersink CreekNippersink Creek near Spring Grove, IL | 124 cfs4.40 ft | 80 cfs | Normal75th percentile · 60 yr record | Below flood stageFlood stage 11 ft. NWS reads 4.41 ft here. |
| Kaskaskia RiverKaskaskia River near Venedy Station, IL | 120 cfs1.01 ft | Not recorded | No historical record | No NWS flood stage |
| Sangamon RiverSangamon River at Petersburg, IL | 114 cfs4.28 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Pope CreekPope Creek near Keithsburg, IL | 112 cfs19.62 ft | 15 cfs | Above normal87th percentile · 92 yr record | Below flood stageFlood stage 24 ft. NWS reads 19.6 ft here. |
| Vermilion RiverVermilion River near Danville, IL | 110 cfs2.52 ft | 109 cfs | Normal50th percentile · 112 yr record | Below flood stageNWS issues forecasts here only during high water. |
| East Branch Du Page RiverEast Branch DU Page River at Bolingbrook, IL | 105 cfs14.90 ft | 70 cfs | Normal68th percentile · 38 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Iroquois RiverIroquois River at Iroquois, IL | 92 cfs5.25 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Apple RiverApple River near Hanover, IL | 86 cfs4.21 ft | 76 cfs | Normal56th percentile · 92 yr record | No NWS flood stage |
| Elkhorn CreekElkhorn Creek near Penrose, IL | 84 cfs3.19 ft | Not recorded | No historical record | No NWS flood stage |
| Kishwaukee RiverKishwaukee River at Marengo, IL | 76 cfs7.52 ft | 70 cfs | Normal52nd percentile · 15 yr record | Below flood stageFlood stage 12 ft. NWS reads 7.52 ft here. |
| East Fork La Moine RiverLA Moine River at Colmar, IL | 72 cfs4.13 ft | Not recorded | No historical record | No NWS flood stage |
| Big Bureau CreekBig Bureau Creek at Princeton, IL | 68 cfs3.02 ft | Not recorded | No historical record | Below flood stageFlood stage 14 ft. NWS reads 3.04 ft here. |
| Aux Sable CreekAux Sable Creek near Morris, IL | 68 cfs3.25 ft | 28 cfs | Normal55th percentile · 19 yr record | Below flood stageFlood stage 11 ft. NWS reads 3.24 ft here. |
| Embarras RiverEmbarras River at Lawrenceville, IL | 62 cfs16.63 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Mason Tazewell Drainage DitchMason Tazewell Drainage D at CR2350E near Topeka, IL | 61 cfs15.45 ft | Not recorded | No historical record | No NWS flood stage |
| Mackinaw RiverMackinaw River near Green Valley, IL | 60 cfs13.77 ft | Not recorded | No historical record | No NWS flood stage |
| Kaskaskia RiverKaskaskia River near Cowden, IL | 58 cfs2.31 ft | Not recorded | No historical record | Below flood stageFlood stage 15 ft. NWS reads 2.31 ft here. |
| Mackinaw RiverMackinaw River near Congerville, IL | 58 cfs1.11 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Blackberry CreekBlackberry Creek near Yorkville, IL | 51 cfs3.65 ft | 22 cfs | Above normal78th percentile · 66 yr record | Below flood stageFlood stage 7 ft. NWS reads 3.64 ft here. |
| Calumet RiverLittle Calumet River at South Holland, IL | 50 cfs5.38 ft | 68 cfs | Normal32nd percentile · 79 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Hickory CreekHickory Creek at Joliet, IL | 50 cfs10.80 ft | 20 cfs | Above normal75th percentile · 82 yr record | Below flood stageFlood stage 16.5 ft. NWS reads 10.79 ft here. |
| South Branch Kishwaukee RiverSouth Branch Kishwaukee River at Dekalb, IL | 48 cfs3.39 ft | 9.0 cfs | Above normal78th percentile · 101 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Embarras RiverEmbarras River at Ste. Marie, IL | 48 cfs0.77 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Indian CreekIndian Creek near Wyoming, IL | 45 cfs9.88 ft | Not recorded | No historical record | No NWS flood stage |
| Middle Fork Big Muddy RiverBig Muddy River at Plumfield, IL | 45 cfs2.47 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| West Branch Du Page RiverWest Branch DU Page River near Warrenville, IL | 45 cfs7.67 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| Big Muddy RiverBig Muddy River below Rend Lake near Benton, IL | 44 cfs7.52 ft | Not recorded | No historical record | No NWS flood stage |
| Thorn CreekThorn Creek at Thornton, IL | 44 cfs2.84 ft | Not recorded | No historical record | Below flood stageNWS issues forecasts here only during high water. |
| DuPage RiverEast Branch Dupage River at Short ST at Lisle, IL | 42 cfs5.55 ft | 85 cfs | No historical record | Below flood stageFlood stage 13 ft. NWS reads 5.56 ft here. |
| Vermilion RiverVermilion River near Leonore, IL | 41 cfs3.48 ft | 88 cfs | Normal31st percentile · 55 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Sugar CreekSugar Creek near Bloomington, IL | 37 cfs1.04 ft | Not recorded | No historical record | Below flood stageFlood stage 11 ft. NWS reads 1.03 ft here. |
| Sangamon RiverSangamon River at Monticello, IL | 33 cfs4.83 ft | 27 cfs | Normal52nd percentile · 118 yr record | Below flood stageNWS issues forecasts here only during high water. |
| Mill CreekMill Creek at Milan, IL | 29 cfs1.99 ft | 5.2 cfs | Above normal78th percentile · 87 yr record | No NWS flood stage |
| West Fork Mazon RiverMazon River near Coal City, IL | 28 cfs1.32 ft | 14 cfs | Normal53rd percentile · 87 yr record | Below flood stageNWS issues forecasts here only during high water. |
Streamflow from the U.S. Geological Survey, updated hourly. "Usually today" is the median for this calendar date over the gauge's full record. A gauge tells you how much water is moving, not whether it is fishing well or safe to wade: check the regulations and a current local report before you go. Flood stages and forecasts: NOAA National Weather Service; "Vs normal" is our comparison with the USGS record, not a National Weather Service product.
By state
Other states
Alabama
104 gauges
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20 gauges
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106 gauges
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176 gauges
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41 gauges
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12 gauges
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Michigan
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44 gauges
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142 gauges
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103 gauges
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89 gauges
