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.

Light Rain

37°F

3°C

Humidity 87%
Wind Speed NW 20 G 29 mph
Barometer 29.89 in
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Wind Chill27°F (-3°C)
Last update 11 Mar 9:55 am CDT
Extended Forecast for

4 Miles WNW Donnellson IA

  • Today

    Today: A 50 percent chance of rain before 2pm. Mostly cloudy, with a high near 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 44 °F

    Chance Rain
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 53. West wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 53 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 40 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain likely before 1pm, then a chance of rain and snow. Cloudy, with a high near 50. Breezy. Chance of precipitation is 70%.

    High: 50 °F

    Rain Likely
    then
    Rain/Snow
    Likely and
    Breezy

Detailed Forecast

Today
A 50 percent chance of rain before 2pm. Mostly cloudy, with a high near 44. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 28. West wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Increasing clouds, with a high near 53. West wind 5 to 15 mph, with gusts as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 40. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Friday
Partly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly cloudy, with a high near 54.
Saturday Night
A 40 percent chance of rain after 1am. Mostly cloudy, with a low around 39.
Sunday
Rain likely before 1pm, then a chance of rain and snow. Cloudy, with a high near 50. Breezy. Chance of precipitation is 70%.
Sunday Night
Mostly cloudy, with a low around 17. Blustery.
Monday
Sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly cloudy, with a high near 37.
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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:
7:46 am CDT Mar 11, 2026
Forecast Valid:
10am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation