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

52°F

11°C

Humidity 50%
Wind Speed S 14 mph
Barometer 29.77 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 9 Mar 1:15 am CDT
Extended Forecast for

2 Miles NNW Donnellson IA

  • Overnight

    Overnight: Clear, with a steady temperature around 49. Southwest wind around 10 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 78 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain before 7pm, then rain and possibly a thunderstorm between 7pm and 4am, then rain after 4am. Low around 41. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Overnight
Clear, with a steady temperature around 49. Southwest wind around 10 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 77. Southwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 52. South wind around 5 mph.
Tuesday
A chance of rain between 1pm and 4pm, then a chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
Rain before 7pm, then rain and possibly a thunderstorm between 7pm and 4am, then rain after 4am. Low around 41. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A 50 percent chance of rain before 1pm. Mostly cloudy, with a high near 51.
Wednesday Night
Mostly clear, with a low around 28.
Thursday
Partly sunny, with a high near 52.
Thursday Night
A 30 percent chance of rain before 1am. Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 54.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Donnellson IA
 40.66°N 91.59°W (Elev. 699 ft)
Last Update:
1:26 am CDT Mar 9, 2026
Forecast Valid:
1am CDT Mar 9, 2026-6pm CDT Mar 15, 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