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

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

81°F

27°C

Humidity 77%
Wind Speed S 16 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 9 Aug 8:56 am CDT
Extended Forecast for

Galt IL

Flood Watch August 9, 01:00pm until August 11, 01:00pm
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming southeast in the evening. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    T-storms
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

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

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Southwest wind 5 to 10 mph becoming southeast in the evening. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 84. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galt IL
 41.8°N 89.76°W (Elev. 640 ft)
Last Update:
8:49 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