Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

66°F

19°C

Humidity 83%
Wind Speed SE 7 mph
Barometer 30.10 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 29 Aug 4:35 am CDT
Extended Forecast for

Donnellson IA

  • Today

    Today: Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am.  Increasing clouds, with a low around 71. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 8am.  Mostly sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

Today
Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 71. South wind around 10 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 93. South wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 75. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Mostly sunny, with a high near 94.
Thursday Night
Partly cloudy, with a low around 72.
Friday
Partly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Donnellson IA
 40.64°N 91.56°W (Elev. 705 ft)
4:16 am CDT Aug 29, 2026
4am CDT Aug 29, 2026-6pm CDT Sep 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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