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.

Mostly Cloudy

59°F

15°C

Humidity 88%
Wind Speed S 13 G 20 mph
Barometer 29.35 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 8 Jan 6:55 pm CST
Extended Forecast for

4 Miles S Denmark IA

  • Tonight

    Tonight: Rain and thunderstorms likely before 11pm, then a slight chance of rain between 11pm and midnight. Mostly cloudy, with a low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 45. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain after midnight, mixing with snow after 3am. Increasing clouds, with a low around 32. North wind around 5 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A slight chance of snow before 9am, then a slight chance of rain and snow between 9am and 3pm, then a slight chance of snow after 3pm. Partly sunny, with a high near 38. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 31.

    High: 31 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain and thunderstorms likely before 11pm, then a slight chance of rain between 11pm and midnight. Mostly cloudy, with a low around 39. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 45. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A chance of rain after midnight, mixing with snow after 3am. Increasing clouds, with a low around 32. North wind around 5 mph. Chance of precipitation is 30%.
Saturday
A slight chance of snow before 9am, then a slight chance of rain and snow between 9am and 3pm, then a slight chance of snow after 3pm. Partly sunny, with a high near 38. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 24.
Monday
Mostly sunny, with a high near 45.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Denmark IA
 40.7°N 91.32°W (Elev. 682 ft)
Last Update:
4:21 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation