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 51%
Wind Speed NW 14 G 21 mph
Barometer 29.63 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 4 May 11:15 pm CDT
Extended Forecast for

Fort Madison IA

  • Tonight

    Tonight: A slight chance of showers before midnight, then a chance of showers after 3am. Increasing clouds, with a low around 50. North wind around 10 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 61. North wind 5 to 10 mph.

    High: 61 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 44. North wind 5 to 10 mph.

    Low: 44 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 57. North wind 5 to 10 mph.

    High: 57 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before midnight, then a chance of showers after 3am. Increasing clouds, with a low around 50. North wind around 10 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 61. North wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 44. North wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 57. North wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 68.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Madison IA
 40.61°N 91.36°W (Elev. 518 ft)
Last Update:
8:41 pm CDT May 4, 2026
Forecast Valid:
11pm CDT May 4, 2026-6pm CDT May 11, 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