National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Fair

79°F

26°C

Humidity 77%
Wind Speed S 10 mph
Barometer 30.07 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 9 Aug 8:55 am CDT
Extended Forecast for

Donovan IL

  • Today

    Today: Sunny, with a high near 89. Heat index values as high as 96. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 88. Heat index values as high as 96. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 89. Heat index values as high as 96. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 70. South wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 88. Heat index values as high as 96. South wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 5 mph, with gusts as high as 10 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 88. South southwest wind 5 to 10 mph. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Tuesday Night
Mostly cloudy, with a low around 67.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers. Partly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 67.
Friday
A chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donovan IL
 40.89°N 87.6°W
Last Update:
8:57 am CDT Aug 9, 2025
Forecast Valid:
9am CDT Aug 9, 2025-6pm CDT Aug 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation