National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

81°F

27°C

Humidity 48%
Wind Speed SE 8 mph
Barometer 29.98 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Oct 4:35 pm CDT
Extended Forecast for

Fort Madison IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. Southeast wind around 10 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 64. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 83. South wind around 15 mph, with gusts as high as 20 mph.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 65. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 65 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Southeast wind around 10 mph.
Tonight
Increasing clouds, with a low around 64. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 83. South wind around 15 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 65. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 71.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 49.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Madison IA
 40.61°N 91.36°W (Elev. 518 ft)
Last Update:
4:16 pm CDT Oct 16, 2025
Forecast Valid:
4pm CDT Oct 16, 2025-6pm CDT Oct 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

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