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

81°F

27°C

Humidity 74%
Wind Speed S 5 mph
Barometer 30.07 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 6 Aug 1:35 pm CDT
Extended Forecast for

4 Miles W Denmark IA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. Southeast wind around 5 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 67. Calm wind.

    Low: 67 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 86 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Increasing clouds, with a low around 68. Southwest wind around 5 mph.

    Low: 68 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. Southeast wind around 5 mph.
Tonight
Increasing clouds, with a low around 67. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Increasing clouds, with a low around 68. Southwest wind around 5 mph.
Saturday
Sunny, with a high near 85.
Saturday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Monday
Partly sunny, with a high near 89.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Denmark IA
 40.74°N 91.41°W (Elev. 719 ft)
Last Update:
1:26 pm CDT Aug 6, 2026
Forecast Valid:
1pm CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
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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