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

63°F

17°C

Humidity 73%
Wind Speed S 10 mph
Barometer 29.75 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Mar 12:55 am CDT
Extended Forecast for

3 Miles S Bonaparte IA

  • Overnight

    Overnight: Mostly clear, with a low around 53. Southwest wind 5 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and thunderstorms likely, mainly before 8pm, then rain likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 41. South wind around 10 mph becoming northwest after midnight. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 7am, then rain likely between 7am and 1pm. High near 46. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 46 °F

    Rain

  • Wednesday Night

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

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Southwest wind 5 to 10 mph.
Tuesday
A 20 percent chance of rain and thunderstorms after 4pm. Mostly sunny, with a high near 77. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Rain and thunderstorms likely, mainly before 8pm, then rain likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 41. South wind around 10 mph becoming northwest after midnight. Chance of precipitation is 60%.
Wednesday
Rain and possibly a thunderstorm before 7am, then rain likely between 7am and 1pm. High near 46. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Wednesday Night
Mostly clear, with a low around 28.
Thursday
Mostly sunny, with a high near 54.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 53.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Sunday
Rain and snow likely. Cloudy, with a high near 46. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Bonaparte IA
 40.66°N 91.79°W (Elev. 653 ft)
Last Update:
12:30 am CDT Mar 10, 2026
Forecast Valid:
1am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
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