West Chicago Warnings, Watches and Advisories
NWS Active Alerts for IL - Map View
Flood Warning
La Salle, IL
Flood Warning issued September 21 at 3:05PM CDT until September 22 at 7:00AM CDT by NWS Chicago IL
...The Flood Warning continues for the following rivers in Illinois... Fox River at Dayton affecting La Salle County. For the Fox River (Illinois)...including Dayton...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Millington downstream to confluence with the Illinois River, including the Dayton gauge. * WHEN...Until Tuesday morning. * IMPACTS...At 12.0 feet, Water overflows low-lying banks in Wedron and Sheridan. * ADDITIONAL DETAILS... - At 2:45 PM CDT Monday the stage was 12.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:45 PM CDT Monday was 12.7 feet. - Forecast...The river is expected to fall below flood stage tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 21st, 2026 03:05:00 pm CDT
September 21st, 2026 03:05:00 pm CDT
September 22nd, 2026 07:00:00 am CDT
Flood Warning
Calhoun, IL; Pike, MO
Flood Warning issued September 21 at 12:23PM CDT until September 28 at 8:42PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...From Thursday morning to Monday evening. * IMPACTS...At 27.2 feet, Silo Park just northwest of Clarksville off Highway 79 begins flooding. * ADDITIONAL DETAILS... - At 12:00 PM CDT Monday the stage was 19.8 feet. - Forecast...The river is expected to rise above flood stage Thursday morning to a crest of 27.3 feet early Saturday morning. It will then fall below flood stage early Sunday afternoon. - Flood stage is 25.0 feet.
Severe
Observed
Immediate
September 21st, 2026 12:23:00 pm CDT
September 21st, 2026 12:23:00 pm CDT
September 23rd, 2026 12:30:00 am CDT
Flood Warning
Calhoun, IL; Lincoln, MO
Flood Warning issued September 21 at 12:23PM CDT until September 28 at 4:36PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Winfield. * WHEN...From Thursday afternoon to Monday afternoon. * IMPACTS...At 23.0 feet, A few local islands begin to flood. At 27.5 feet, At this stage, Lock and Dam 25 will stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet of polyethylene plastic as a precaution. * ADDITIONAL DETAILS... - At 12:00 PM CDT Monday the stage was 19.0 feet. - Forecast...The river is expected to rise above flood stage Thursday afternoon to a crest of 27.4 feet early Saturday morning. It will then fall below flood stage late Sunday morning. - Flood stage is 26.0 feet.
Severe
Observed
Immediate
September 21st, 2026 12:23:00 pm CDT
September 21st, 2026 12:23:00 pm CDT
September 23rd, 2026 12:30:00 am CDT
Flood Warning
Pike, IL; Ralls, MO
Flood Warning issued September 21 at 12:23PM CDT until September 28 at 2:12AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...From Thursday morning to late Sunday night. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 12:00 PM CDT Monday the stage was 10.8 feet. - Forecast...The river is expected to rise above flood stage late Thursday morning to a crest of 17.2 feet Friday morning. It will then fall below flood stage Saturday evening. - Flood stage is 16.0 feet.
Severe
Observed
Immediate
September 21st, 2026 12:23:00 pm CDT
September 21st, 2026 12:23:00 pm CDT
September 23rd, 2026 12:30:00 am CDT
Flood Warning
Adams, IL; Lewis, MO
Flood Warning issued September 21 at 12:23PM CDT until September 27 at 4:00PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Canton. * WHEN...From Thursday morning to Sunday afternoon. * IMPACTS...At 15.6 feet, North Front Street and the first 2-3 campsites in Mississippi Park begin flooding at this height. * ADDITIONAL DETAILS... - At 10:00 AM CDT Monday the stage was 10.2 feet. - Forecast...The river is expected to rise above flood stage Thursday morning to a crest of 15.8 feet Friday morning. It will then fall below flood stage late Saturday morning. - Flood stage is 15.0 feet.
Severe
Observed
Immediate
September 21st, 2026 12:23:00 pm CDT
September 21st, 2026 12:23:00 pm CDT
September 23rd, 2026 12:30:00 am CDT
Flood Warning
Pike, IL; Marion, MO
Flood Warning issued September 21 at 12:23PM CDT until September 27 at 1:00PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From Thursday evening to Sunday afternoon. * IMPACTS...At 17.0 feet, John Hay Recreation Area on east side (inside the Illinois Sny Levee) begins flooding. * ADDITIONAL DETAILS... - At 11:15 AM CDT Monday the stage was 13.4 feet. - Forecast...The river is expected to rise above flood stage late Thursday evening to a crest of 17.4 feet early Friday afternoon. It will then fall below flood stage Saturday morning. - Flood stage is 17.0 feet.
Severe
Observed
Immediate
September 21st, 2026 12:23:00 pm CDT
September 21st, 2026 12:23:00 pm CDT
September 23rd, 2026 12:30:00 am CDT
Flood Watch
Hancock; Clark
Flood Watch issued September 21 at 11:48AM CDT until September 26 at 9:00AM CDT by NWS Quad Cities IA IL
...The Flood Watch continues for the following rivers in Missouri... Illinois... Mississippi River at Gregory Landing affecting Clark and Hancock Counties. * WHAT...Flooding is possible. * WHERE...Mississippi River at Gregory Landing. * WHEN...From late Wednesday night to Saturday morning. * ADDITIONAL DETAILS... - At 11:30 AM CDT Monday the stage was 10.8 feet. - Forecast...Flood stage may be reached early Thursday morning. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severe
Possible
Future
September 21st, 2026 11:48:00 am CDT
September 21st, 2026 11:48:00 am CDT
September 22nd, 2026 12:00:00 pm CDT
Flood Warning
Des Moines, IA; Louisa, IA; Henderson, IL; Mercer, IL
Flood Warning issued September 21 at 11:47AM CDT until September 25 at 5:00PM CDT by NWS Quad Cities IA IL
...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa...Illinois... Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Keithsburg. * WHEN...From Tuesday evening to Friday afternoon. * IMPACTS...At 14.5 feet, Water affects low lying areas in Oquawka. * ADDITIONAL DETAILS... - At 11:30 AM CDT Monday the stage was 11.5 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening to a crest of 14.8 feet early Wednesday afternoon. It will then fall below flood stage late Thursday evening. - Flood stage is 14.0 feet.
Severe
Likely
Expected
September 21st, 2026 11:47:00 am CDT
September 21st, 2026 11:47:00 am CDT
September 22nd, 2026 12:00:00 pm CDT
Flood Warning
Des Moines, IA; Lee, IA; Hancock, IL; Henderson, IL
Flood Warning issued September 21 at 11:47AM CDT until September 26 at 5:00AM CDT by NWS Quad Cities IA IL
...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa...Illinois... Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Burlington. * WHEN...From Wednesday morning to late Friday night. * IMPACTS...At 16.0 feet, Water affects low lying buildings and homes in Montrose and Niota. * ADDITIONAL DETAILS... - At 11:00 AM CDT Monday the stage was 12.6 feet. - Forecast...The river is expected to rise above flood stage Wednesday morning to a crest of 15.8 feet Thursday morning. It will then fall below flood stage late Friday morning. - Flood stage is 15.0 feet.
Severe
Likely
Expected
September 21st, 2026 11:47:00 am CDT
September 21st, 2026 11:47:00 am CDT
September 22nd, 2026 12:00:00 pm CDT
Flood Warning
Des Moines, IA; Henderson, IL
Flood Warning issued September 21 at 11:47AM CDT until September 26 at 10:00AM CDT by NWS Quad Cities IA IL
...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa...Illinois... Mississippi River at Keithsburg affecting Henderson, Mercer, Louisa and Des Moines Counties. Mississippi River at Gladstone LD18 affecting Henderson and Des Moines Counties. Mississippi River at Burlington affecting Hancock, Lee, Henderson and Des Moines Counties. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Gladstone LD18. * WHEN...From late Tuesday night to Saturday morning. * ADDITIONAL DETAILS... - At 11:30 AM CDT Monday the stage was 7.6 feet. - Forecast...The river is expected to rise above flood stage early Wednesday morning to a crest of 11.1 feet early Thursday morning. It will then fall below flood stage Friday afternoon. - Flood stage is 10.0 feet.
Severe
Likely
Expected
September 21st, 2026 11:47:00 am CDT
September 21st, 2026 11:47:00 am CDT
September 22nd, 2026 12:00:00 pm CDT
Flood Warning
Lee, IL
Flood Warning issued September 21 at 11:03AM CDT until September 21 at 7:00PM CDT by NWS Chicago IL
* WHAT...Flooding caused by excessive rainfall on the Green River and nearby tributaries continues. * WHERE...Portions of Lee County in north central Illinois... * WHEN...Until 700 PM CDT Monday. * IMPACTS...Creeks and streams have risen out of their banks. Roads and streets are flooded. Flooding of structures is occurring. High water may be slow to recede from flooded areas. * ADDITIONAL DETAILS... - At 1101 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. - Lee County Emergency Management reports that flooding continues along the Green River in Lee County. - Some locations that will experience flooding include... Amboy. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
September 21st, 2026 11:03:00 am CDT
September 21st, 2026 11:03:00 am CDT
September 21st, 2026 07:00:00 pm CDT
Flood Warning
Henry, IL; Rock Island, IL
Flood Warning issued September 21 at 10:23AM CDT until September 25 at 6:00AM CDT by NWS Quad Cities IA IL
...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Whiteside, Henry IL and Rock Island Counties. Rock River at Moline affecting Henry IL and Rock Island Counties. * WHAT...Moderate flooding is forecast. * WHERE...Rock River at Moline. * WHEN...From this evening to Friday morning. * IMPACTS...At 13.2 feet, Water affects 60th Street south of John Deere Road in Moline and 56th Ave from Green Valley Park 48th St. Water is on Canal Road in Big Island. Smith's Island is affected by flood waters. * ADDITIONAL DETAILS... - At 9:30 AM CDT Monday the stage was 11.1 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 13.2 feet tomorrow evening. It will then fall below flood stage late Thursday evening. - Flood stage is 12.0 feet.
Severe
Observed
Immediate
September 21st, 2026 10:23:00 am CDT
September 21st, 2026 10:23:00 am CDT
September 22nd, 2026 10:30:00 am CDT
Flood Warning
Henry, IL; Rock Island, IL; Whiteside, IL
Flood Warning issued September 21 at 10:23AM CDT until September 24 at 3:00PM CDT by NWS Quad Cities IA IL
...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Whiteside, Henry IL and Rock Island Counties. Rock River at Moline affecting Henry IL and Rock Island Counties. * WHAT...Minor flooding is forecast. * WHERE...Rock River near Joslin. * WHEN...From this afternoon to Thursday afternoon. * IMPACTS...At 13.7 feet, Water affects Barstow Road between Barstow and Osborn. * ADDITIONAL DETAILS... - At 9:45 AM CDT Monday the stage was 10.9 feet. - Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 13.4 feet tomorrow morning. It will then fall below flood stage Thursday morning. - Flood stage is 12.0 feet.
Severe
Observed
Immediate
September 21st, 2026 10:23:00 am CDT
September 21st, 2026 10:23:00 am CDT
September 22nd, 2026 10:30:00 am CDT
Flood Warning
Lake, IL
Flood Warning issued September 21 at 10:21AM CDT until September 26 at 1:00AM CDT by NWS Chicago IL
...The National Weather Service in Chicago has issued a Flood Warning for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. For the Des Plaines River...including Russell, Gurnee...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...From Tuesday morning to late Friday night. * IMPACTS...At 7.0 feet, Forest land inundated near the river in Gurnee. * ADDITIONAL DETAILS... - At 9:30 AM CDT Monday the stage was 6.4 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning to a crest of 8.0 feet early Thursday morning. It will then fall below flood stage Friday evening. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severe
Likely
Expected
September 21st, 2026 10:21:00 am CDT
September 21st, 2026 10:21:00 am CDT
September 22nd, 2026 04:30:00 am CDT
Flood Warning
Lake, IL
Flood Warning issued September 21 at 10:21AM CDT until September 27 at 1:00AM CDT by NWS Chicago IL
...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Russell, Gurnee...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until late Saturday night. * IMPACTS...At 8.0 feet, Agricultural and park land is inundated near the river. Residential property is threatened near the river. * ADDITIONAL DETAILS... - At 9:30 AM CDT Monday the stage was 8.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM CDT Monday was 8.2 feet. - Forecast...The river is expected to rise to a crest of 8.6 feet just after midnight tonight. It will then fall below flood stage Saturday evening. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 21st, 2026 10:21:00 am CDT
September 21st, 2026 10:21:00 am CDT
September 22nd, 2026 04:30:00 am CDT
Flood Warning
Lake, IL; Kenosha, WI
Flood Warning issued September 21 at 10:13AM CDT until September 25 at 11:00AM CDT by NWS Milwaukee/Sullivan WI
...The Flood Warning is extended for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. ...The Flood Warning continues for the following rivers in Wisconsin... Root River Canal At Raymond affecting Racine County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Friday morning. * IMPACTS...At 12.0 feet, Water is up to the first floor levels of some homes in the Town of Wheatland, Silver Lake and Village of Salem Lakes area along Riverside Drive and Shorewood Drive. Hoosier Creek Rd floods. * ADDITIONAL DETAILS... - At 9:00 AM CDT Monday the stage was 12.0 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM CDT Monday was 12.0 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet this evening. It will then fall below flood stage early Friday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 06/13/2001. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
September 21st, 2026 10:13:00 am CDT
September 21st, 2026 10:13:00 am CDT
September 21st, 2026 10:15:00 pm CDT
Beach Hazards Statement
Lake; Northern Cook; Central Cook
Beach Hazards Statement issued September 21 at 9:25AM CDT until September 23 at 7:00PM CDT by NWS Chicago IL
* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 5 to 8 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Through Wednesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers.
Moderate
Likely
Expected
September 21st, 2026 09:25:00 am CDT
September 21st, 2026 09:25:00 am CDT
September 21st, 2026 05:30:00 pm CDT
SAFETY and DATA MESSAGE
Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards West Chicago.
Use the Radar Maps link provided to understand the trajectory of a storm.
Disclaimer and Conditions of Use
This information is provided AS IS and strictly for recreational, educational, and informational purposes only; we disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use the data. The information may be inaccurate or incomplete based on how well the corresponding weather station successfully or unsuccessfully reported or recorded it with the instruments which measured the weather at the time; including gaps between hours or even days. Specifically, LocalConditions.com and this data, as presented, may not and should not be used as a reference for any reason relating to legal proceedings, insurance claims, recovery, loss prevention, making predictions, or critical decisions. Lastly, the weather station may be miles away from the actual area of interest. This data may not be leeched or republished.
This severe weather alerts report is relevant for ZIP codes 60185 and 60186, accurately covering areas of West Chicago, IL.
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Currently
| 60°F |
30.12 inHg.
Barometer 75%
Humidity ENE 22.7 mph Wind |
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| Overcast | ||
National Outlook
Heavy Rains and Thunderstorms for the Mid-Atlantic and Southeast - 09-21 to 09-23
Storms and Cool Temperatures Expected in the East 09-24 to 09-28
Mon Sep 21st 2026, 6:29am PDT
