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.

Thunderstorm in Vicinity Rain

59°F

15°C

Humidity 94%
Wind Speed S 16 mph
Barometer 29.71 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 3:15 am CST
Extended Forecast for

Denmark IA

  • Overnight

    Overnight: Rain likely and possibly a thunderstorm before 4am, then a chance of rain and thunderstorms after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 43 by 10am. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 52 °F⇓

    Slight Chance
    Rain then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West wind 5 to 10 mph becoming southwest after midnight.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 73. Chance of precipitation is 80%.

    High: 73 °F

    Chance
    T-storms then
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

Detailed Forecast

Overnight
Rain likely and possibly a thunderstorm before 4am, then a chance of rain and thunderstorms after 4am. Some of the storms could be severe. Mostly cloudy, with a low around 46. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Saturday
A 20 percent chance of rain before 8am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 43 by 10am. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 33. West wind 5 to 10 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 64. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 73.
Monday Night
Clear, with a low around 49.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 73. Chance of precipitation is 80%.
Tuesday Night
Rain. Low around 40. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of rain before noon. Cloudy, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 40.
Friday
Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Denmark IA
 40.74°N 91.32°W (Elev. 699 ft)
Last Update:
2:07 am CST Mar 7, 2026
Forecast Valid:
3am CST Mar 7, 2026-6pm CDT Mar 13, 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