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.

Fair

46°F

8°C

Humidity 87%
Wind Speed S 13 mph
Barometer 29.97 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 16 Feb 8:55 am CST
Extended Forecast for

Donnellson IA

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Partly cloudy, with a low around 51. South wind around 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph.

    Low: 51 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Partly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Increasing clouds, with a low around 43. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 5 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of rain. Partly cloudy, with a low around 51. South wind around 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
A 40 percent chance of rain after noon. Partly sunny, with a high near 62.
Thursday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
A 30 percent chance of rain. Partly cloudy, with a low around 22.
Sunday
Sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IA
 40.64°N 91.56°W (Elev. 705 ft)
Last Update:
5:46 am CST Feb 16, 2026
Forecast Valid:
9am CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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