This map will show current Severe Weather Alerts for the state selected. Maps will not appear for areas which do not currently have any active Severe Weather Alerts. For a comprehensive forecast for your area, please visit the National Weather Service website at www.weather.gov.

Illinois Severe Weather Alerts

Flood Warning IllinoisState Weather Alerts

Flood Warning
...the Flood Warning Continues For The Following Rivers In Wisconsin... Rock River At Fort Atkinson Affecting Jefferson County ...the Flood Warning Continues For The Following Rivers In Wisconsin...illinois... Rock River At Jefferson Affecting Jefferson County ...Read More.
Effective: October 20, 2019 at 3:51pmExpires: October 21, 2019 at 3:50amTarget Area: Winnebago

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Hancock

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Hancock; Henderson

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Henderson

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Henderson; Mercer

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Mercer

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Mercer; Rock Island

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Rock Island

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 7:34amTarget Area: Rock Island

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 9:09amTarget Area: Hancock

Flood Warning
.mississippi River Levels Will Continue To Fall Over The Next Week. The Rain Expected Over The Next Few Days Doesn`t Appear To Be Enough To Cause Substantial Changes In The Forecasts. If Anything, Just A Slight Slowing Of The Recession. River Forecasts Include Past Precipitation And Forecast Rainfall For The Next 48 Hours. ...Read More.
Effective: October 20, 2019 at 3:35pmExpires: October 21, 2019 at 1:00pmTarget Area: Rock Island; Whiteside

Flood Warning
.river Levels On The Pecatonica River And The Rock River Continue To Fall, However More Rain Is Expected In The Next Week Which Will Likely Have Some Impact On The Rate Of Recession. On The Pecatonica River, The Levels At Freeport Have Fallen Below Flood Stage, But Rain Amounts In The Forecast Are Expected To Cause The River To Rise Back To Flood Stage And Hover Right At That Level For The Next Week. ...Read More.
Effective: October 20, 2019 at 3:17pmExpires: October 21, 2019 at 7:16amTarget Area: Henry; Rock Island; Whiteside

Flood Warning
.river Levels On The Pecatonica River And The Rock River Continue To Fall, However More Rain Is Expected In The Next Week Which Will Likely Have Some Impact On The Rate Of Recession. On The Pecatonica River, The Levels At Freeport Have Fallen Below Flood Stage, But Rain Amounts In The Forecast Are Expected To Cause The River To Rise Back To Flood Stage And Hover Right At That Level For The Next Week. ...Read More.
Effective: October 20, 2019 at 3:17pmExpires: October 22, 2019 at 1:00amTarget Area: Henry; Rock Island

Flood Warning
.river Levels On The Pecatonica River And The Rock River Continue To Fall, However More Rain Is Expected In The Next Week Which Will Likely Have Some Impact On The Rate Of Recession. On The Pecatonica River, The Levels At Freeport Have Fallen Below Flood Stage, But Rain Amounts In The Forecast Are Expected To Cause The River To Rise Back To Flood Stage And Hover Right At That Level For The Next Week. ...Read More.
Effective: October 20, 2019 at 3:17pmExpires: October 27, 2019 at 7:00pmTarget Area: Stephenson

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Adams

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Calhoun

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Calhoun

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Jackson; Randolph

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Jersey

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Madison

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Mississippi River At... Canton Quincy Lock & Dam 21 Hannibal Saverton ...Read More.
Effective: October 20, 2019 at 11:33amExpires: October 21, 2019 at 5:33pmTarget Area: Pike

Flood Warning
...the Flood Warning Continues For The Following River In Illinois.. Illinois River At Hardin River Forecasts Are Based On Observed Precipitation And Forecast Precipitation For The Next 48 Hours. The Flood Warning Continues For The Illinois River At Hardin ...Read More.
Effective: October 20, 2019 at 11:30amExpires: October 21, 2019 at 5:29pmTarget Area: Calhoun; Greene; Jersey

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County The Following Forecasts Are Based On Observed Precipitation As Well As Forecast Precipitation 24-48 Hours Into The Future. ...Read More.
Effective: October 20, 2019 at 10:10amExpires: October 21, 2019 at 12:10amTarget Area: Winnebago

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois... Pecatonica River Near Shirland Affecting Winnebago County Rock River At Latham Park Affecting Winnebago County The Following Forecasts Are Based On Observed Precipitation As Well As Forecast Precipitation 24-48 Hours Into The Future. ...Read More.
Effective: October 20, 2019 at 10:10amExpires: October 21, 2019 at 12:10amTarget Area: Winnebago

Flood Warning
...the Flood Warning Continues For The Following Rivers In Illinois...missouri... Mississippi River At Cape Girardeau .minor Flooding Continues On The Mississippi River At Cape Girardeau. Water Levels Continue To Fall Slowly, And The River Is Forecast To Fall Below Flood Stage Sunday, October 27. ...Read More.
Effective: October 20, 2019 at 9:37amExpires: October 28, 2019 at 1:00amTarget Area: Alexander; Jackson; Union

 

Severe Weather Alerts in Illinois Illinois Frequent Weather Alerts: Blizzards, winter storms, flooding, tornadoes, thunderstorms.

Due to its 400 miles length and mid-continental positioning, Illinois has a climate that varies widely. Most of the State has humid, hot summers and cold winters. The southern portion has a more moderate winter.

One of the flattest states, there are no mountains to keep very cold Arctic air masses away in the winter or the humid air masses flowing in from the Gulf of Mexico in the summertime. Extreme cold and heat are not uncommon.

In the winter, wind chills can make the temperature seem much lower than it is; negative double digits happen annually and warnings are sent out to protect the vulnerable. In the summer, heat advisories warn people to stay indoors due to deadly temperatures. The humidity makes temperatures seem warmer than they are.

Flooding is common in the state and Illinois struggles with urban flooding caused by a combination of heavy rainfall and water-resistant roads.

Storms can happen during any season and severe thunderstorms are a normal part of the spring and early summer season. When severe enough, they can cause destructive tornadoes. Winter storms can bring heavy snowfall that can also lead to flooding if it melts too quickly.