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.

Light Rain Fog/Mist

70°F

21°C

Humidity 94%
Wind Speed N 9 mph
Barometer 30.06 in
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 9 Sep 5:55 am CDT
Extended Forecast for

3 Miles E Denmark IA

  • Today

    Today: Showers and thunderstorms, mainly before 2pm. High near 80. North wind around 5 mph becoming south in the morning. Chance of precipitation is 80%.

    High: 80 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 30%.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 82. Northeast wind around 5 mph.

    High: 82 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers before 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms, mainly before 2pm. High near 80. North wind around 5 mph becoming south in the morning. Chance of precipitation is 80%.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Increasing clouds, with a low around 66. Calm wind. Chance of precipitation is 30%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 82. Northeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 58. Calm wind.
Friday
Sunny, with a high near 84.
Friday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 65.
Saturday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 84.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 63.
Sunday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 68.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 89.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Denmark IA
 40.74°N 91.26°W (Elev. 673 ft)
Last Update:
5:06 am CDT Sep 9, 2026
Forecast Valid:
6am CDT Sep 9, 2026-6pm CDT Sep 15, 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