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.

A Few Clouds

59°F

15°C

Humidity 31%
Wind Speed S 7 mph
Barometer 30.13 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 24 Mar 5:55 pm CDT
Extended Forecast for

3 Miles E Denmark IA

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of rain between 10pm and 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    T-storms then
    Chance Rain

  • Friday

    Friday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Southeast wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 77. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 56. South wind around 5 mph.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of rain between 10pm and 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Friday
Mostly sunny, with a high near 51.
Friday Night
Clear, with a low around 29.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 76.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 54.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Denmark IA
 40.76°N 91.26°W (Elev. 689 ft)
Last Update:
5:46 pm CDT Mar 24, 2026
Forecast Valid:
6pm CDT Mar 24, 2026-6pm CDT Mar 31, 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