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

Hazardous Weather Conditions

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fog/Mist

70°F

21°C

Humidity 88%
Wind Speed SE 5 mph
Barometer 30.05 in
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 15 Jun 7:35 am CDT
Extended Forecast for

Colusa IL

  • Today

    Today: Mostly sunny, with a high near 85. East wind around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. East wind around 5 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. Southeast wind around 5 mph.

    High: 86 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms. Low around 68. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 68 °F

    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 85. East wind around 5 mph.
Tonight
A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 66. East wind around 5 mph.
Monday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. Southeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 68. South wind around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Tuesday Night
Showers and thunderstorms. Low around 68. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 64.
Juneteenth
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 92.
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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:
6:02 am CDT Jun 15, 2025
Forecast Valid:
7am CDT Jun 15, 2025-6pm CDT Jun 21, 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