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

28°F

-2°C

Humidity 69%
Wind Speed W 15 G 24 mph
Barometer 30.31 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 27 Nov 2:35 am CST
Extended Forecast for

4 Miles SSE Donnellson IA

Winter Storm Watch November 29, 12:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 24. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 37. Northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. Northwest wind around 5 mph.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 34. Northwest wind around 5 mph becoming calm in the morning.

    High: 34 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow, mainly after midnight. The snow could be heavy at times. Low around 27. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 27 °F

    Chance Snow
    then Heavy
    Snow

  • Saturday

    Saturday: Snow before noon, then rain and snow. High near 34. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 34 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow likely, becoming all snow after 8pm. Cloudy, with a low around 19. Chance of precipitation is 70%.

    Low: 19 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 25.

    High: 25 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 24. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thanksgiving Day
Sunny, with a high near 37. Northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 18. Northwest wind around 5 mph.
Friday
Increasing clouds, with a high near 34. Northwest wind around 5 mph becoming calm in the morning.
Friday Night
Snow, mainly after midnight. The snow could be heavy at times. Low around 27. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow before noon, then rain and snow. High near 34. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Rain and snow likely, becoming all snow after 8pm. Cloudy, with a low around 19. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 25.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
Partly sunny, with a high near 20.
Monday Night
Mostly cloudy, with a low around 7.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Donnellson IA
 40.59°N 91.53°W (Elev. 702 ft)
Last Update:
2:36 am CST Nov 27, 2025
Forecast Valid:
2am CST Nov 27, 2025-6pm CST Dec 3, 2025
 
Forecast Discussion
 
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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