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

81°F

27°C

Humidity 54%
Wind Speed S 10 mph
Barometer 29.75 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Oct 7:35 pm CDT
Extended Forecast for

Fort Madison IA

  • Tonight

    Tonight: Mostly clear, with a low around 70. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between 3pm and 4pm. Sunny, with a high near 84. Southwest wind around 5 mph. Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 66. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 4pm. Cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely after 1am. Cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Cloudy then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 71 °F

    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. Breezy.

    Low: 51 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 61. Breezy.

    High: 61 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of showers between 3pm and 4pm. Sunny, with a high near 84. Southwest wind around 5 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 66. North wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 4pm. Cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely after 1am. Cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 71. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Mostly cloudy, with a low around 51. Breezy.
Friday
Mostly sunny, with a high near 61. Breezy.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 72.
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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:
6:51 pm CDT Oct 12, 2026
Forecast Valid:
7pm CDT Oct 12, 2026-6pm CDT Oct 19, 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