Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Light Rain

79°F

26°C

Humidity 94%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Aug 5:35 pm CDT
Extended Forecast for

4 Miles NNW Denmark IA

Flood Watch August 14, 06:11pm until August 15, 10:00am
Flood Watch August 15, 06:45pm until August 16, 03:00am
Click here for hazard details and duration
Flood Watch
Flood Watch
  •  
    Flood Watch August 14, 06:11pm until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Tonight

    Low: 72 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 10 mph becoming west in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 91 °F

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming southwest in the evening.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 84. Northwest wind around 5 mph.  Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 7pm.  Partly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 72. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 106. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming southwest in the evening.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Northwest wind around 5 mph. Chance of precipitation is 40%.
Sunday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 50%.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Partly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Denmark IA
 40.81°N 91.35°W (Elev. 702 ft)
5:46 pm CDT Aug 14, 2026
6pm CDT Aug 14, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

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