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 and Breezy

39°F

4°C

Humidity 81%
Wind Speed NW 22 G 33 mph
Barometer 30.04 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 11 Mar 2:55 pm CDT
Extended Forecast for

4 Miles WNW Donnellson IA

  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 41. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 41 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Clear, with a low around 28. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 52. Breezy, with a west wind 5 to 10 mph becoming south 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 52 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 39. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 51. Breezy.

    High: 51 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Friday Night

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

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Saturday Night

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

    Low: 40 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain. High near 53. Breezy. Chance of precipitation is 90%.

    High: 53 °F

    Rain and
    Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 41. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 28. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Increasing clouds, with a high near 52. Breezy, with a west wind 5 to 10 mph becoming south 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 39. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph.
Friday
Partly sunny, with a high near 51. Breezy.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Mostly cloudy, with a high near 51.
Saturday Night
A 40 percent chance of rain after 1am. Cloudy, with a low around 40.
Sunday
Rain. High near 53. Breezy. Chance of precipitation is 90%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Donnellson IA
 40.68°N 91.64°W (Elev. 712 ft)
Last Update:
3:17 pm CDT Mar 11, 2026
Forecast Valid:
3pm CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation