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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Mostly Cloudy

28°F

-2°C

Humidity 86%
Wind Speed NE 7 mph
Barometer 29.88 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 6 Dec 8:15 pm CST
Extended Forecast for

Colusa IL

Winter Weather Advisory December 6, 08:37pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 6, 08:37pm until December 7, 06:00am

    NOW until 6:00am Sun

    Winter Weather Advisory

  • Tonight

    Low: 25 °F

    Wintry Mix

  • Sunday

    Sunday: A 20 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 18 by 5pm. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 28 °F⇓

    Slight Chance
    Snow then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 8. Wind chill values as low as zero. North wind 5 to 10 mph becoming light and variable after midnight.

    Low: 8 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 27. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 27 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, snow, and freezing rain before 4am, then a chance of rain and snow between 4am and 5am, then a chance of snow after 5am. Low around 25. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Sunday
A 20 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 18 by 5pm. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 8. Wind chill values as low as zero. North wind 5 to 10 mph becoming light and variable after midnight.
Monday
Partly sunny, with a high near 27. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 36.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 19.
Thursday
Mostly cloudy, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 10.
Friday
Partly sunny, with a high near 17.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
Mostly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Colusa IL
 40.56°N 91.15°W (Elev. 669 ft)
Last Update:
7:51 pm CST Dec 6, 2025
Forecast Valid:
8pm CST Dec 6, 2025-6pm CST Dec 13, 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