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.

Thunderstorm in Vicinity Fog/Mist

43°F

6°C

Humidity 93%
Wind Speed N 1 mph
Barometer 30.10 in
Dewpoint 41°F (5°C)
Visibility 4.00 mi
Last update 3 Mar 6:35 pm CST
Extended Forecast for

Fort Madison IA

  • Tonight

    Tonight: A chance of rain and thunderstorms. Cloudy, with a low around 39. Northeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 39 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before noon, then a chance of showers after noon. Cloudy, with a high near 52. Northeast wind around 5 mph. Chance of precipitation is 50%.

    High: 52 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Patchy fog after 9pm. Low around 44. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 80%.

    Low: 44 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 62. Northwest wind around 5 mph becoming south in the afternoon.

    High: 62 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm, mainly after 3am. Partly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Mostly Clear
    then Rain
    Likely

  • Friday

    Friday: Rain and possibly a thunderstorm. High near 75. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain and thunderstorms. Cloudy, with a low around 39. Northeast wind around 5 mph. Chance of precipitation is 50%.
Wednesday
A chance of rain before noon, then a chance of showers after noon. Cloudy, with a high near 52. Northeast wind around 5 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and possibly a thunderstorm. Patchy fog after 9pm. Low around 44. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 80%.
Thursday
A 30 percent chance of showers before noon. Mostly cloudy, then gradually becoming sunny, with a high near 62. Northwest wind around 5 mph becoming south in the afternoon.
Thursday Night
Rain likely and possibly a thunderstorm, mainly after 3am. Partly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
Rain and possibly a thunderstorm. High near 75. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 80%.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 53.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Madison IA
 40.63°N 91.33°W (Elev. 525 ft)
Last Update:
5:22 pm CST Mar 3, 2026
Forecast Valid:
6pm CST Mar 3, 2026-6pm CDT Mar 10, 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