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 89%
Wind Speed E 3 mph
Barometer 29.93 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Jul 7:15 pm CDT
Extended Forecast for

4 Miles W Denmark IA

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. East wind around 5 mph.

    Low: 70 °F

    Chance
    T-storms

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 83. Southeast wind around 5 mph.

    High: 83 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Southeast wind around 5 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. Heat index values as high as 106. South wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 70. East wind around 5 mph.
Monday
A 10 percent chance of showers and thunderstorms before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 83. Southeast wind around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 91. Heat index values as high as 106. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Thursday Night
Partly cloudy, with a low around 73.
Friday
Mostly sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Denmark IA
 40.74°N 91.41°W (Elev. 719 ft)
Last Update:
5:31 pm CDT Jul 20, 2025
Forecast Valid:
7pm CDT Jul 20, 2025-6pm CDT Jul 27, 2025
 
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