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.

Overcast

27°F

-3°C

Humidity 80%
Wind Speed N 18 mph
Barometer 30.19 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 7 Dec 10:15 am CST
Extended Forecast for

4 Miles WNW Donnellson IA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 17 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 27 °F⇓

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 9. North wind around 5 mph becoming calm in the evening.

    Low: 9 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 29. Calm wind becoming south around 5 mph in the afternoon.

    High: 29 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 28.

    High: 28 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 17 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 9. North wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 29. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 21. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 37.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 28.
Thursday Night
Mostly cloudy, with a low around 6.
Friday
Mostly sunny, with a high near 15.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
Partly sunny, with a high near 12.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Donnellson IA
 40.68°N 91.64°W (Elev. 712 ft)
Last Update:
8:41 am CST Dec 7, 2025
Forecast Valid:
10am CST Dec 7, 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