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.

Fair

72°F

22°C

Humidity 47%
Wind Speed S 6 mph
Barometer 29.89 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 15 Jun 7:55 pm CDT
Extended Forecast for

4 Miles SSE Denmark IA

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Mostly clear, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 78 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 83. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 83 °F

    Showers then
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: Thunderstorms likely before 7pm. Mostly clear, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    T-storms
    Likely then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Mostly clear, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 78. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 57. Northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 83. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
Thunderstorms likely before 7pm. Mostly clear, with a low around 61. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 55.
Juneteenth
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 59.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Denmark IA
 40.7°N 91.29°W (Elev. 653 ft)
Last Update:
5:56 pm CDT Jun 15, 2026
Forecast Valid:
8pm CDT Jun 15, 2026-6pm CDT Jun 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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