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

57°F

14°C

Humidity 67%
Wind Speed S 8 mph
Barometer 29.90 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 4 Nov 8:35 pm CST
Extended Forecast for

4 Miles SSW Bonaparte IA

  • Tonight

    Tonight: Clear, with a low around 49. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 61. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 49. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 59. North wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Increasing clouds, with a high near 61. South wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 49.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 37.
Saturday
A 30 percent chance of showers after noon. Partly sunny, with a high near 58.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 39.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 23.
Veterans Day
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Bonaparte IA
 40.64°N 91.82°W (Elev. 600 ft)
Last Update:
8:11 pm CST Nov 4, 2025
Forecast Valid:
8pm CST Nov 4, 2025-6pm CST Nov 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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