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.

Overcast

77°F

25°C

Humidity 83%
Wind Speed NW 9 mph
Barometer 30.02 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 30 Jul 5:35 pm CDT
Extended Forecast for

Denmark IA

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Cloudy, with a high near 79. North wind around 5 mph. Chance of precipitation is 30%.

    High: 79 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 4am. Cloudy, with a low around 65. North wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Scattered
    T-storms

  • Thursday

    Thursday: Isolated showers and thunderstorms before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 75. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 75 °F

    Isolated
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northeast wind 5 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Cloudy, with a high near 79. North wind around 5 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly before 4am. Cloudy, with a low around 65. North wind 5 to 10 mph. Chance of precipitation is 40%.
Thursday
Isolated showers and thunderstorms before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 75. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 55. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Denmark IA
 40.74°N 91.35°W (Elev. 732 ft)
Last Update:
4:33 pm CDT Jul 30, 2025
Forecast Valid:
5pm CDT Jul 30, 2025-6pm CDT Aug 6, 2025
 
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