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.

Partly Cloudy

77°F

25°C

Humidity 61%
Wind Speed S 14 G 17 mph
Barometer 29.67 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Mar 2:15 pm CDT
Extended Forecast for

4 Miles NW Donnellson IA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain, mainly after 5pm. Mostly sunny, with a high near 83. South wind around 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance Rain

  • Tonight

    Tonight: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 5am. Low around 40. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 11am, then a slight chance of rain between 11am and noon. High near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 48 °F

    Rain then
    Decreasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 27. Northwest wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of rain, mainly after 5pm. Mostly sunny, with a high near 83. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 5am. Low around 40. Southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm before 11am, then a slight chance of rain between 11am and noon. High near 48. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 27. Northwest wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 53.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 59.
Saturday Night
A 50 percent chance of rain after 1am. Mostly cloudy, with a low around 39.
Sunday
Rain and snow likely. Cloudy, with a high near 49. Breezy. Chance of precipitation is 70%.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Donnellson IA
 40.68°N 91.61°W (Elev. 650 ft)
Last Update:
2:06 pm CDT Mar 10, 2026
Forecast Valid:
2pm CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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