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 and Breezy

55°F

13°C

Humidity 38%
Wind Speed W 21 G 25 mph
Barometer 30.20 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 19 Apr 12:15 pm CDT
Extended Forecast for

3 Miles W Donnellson IA

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 33. North wind 5 to 10 mph becoming east after midnight.

    Low: 33 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 59. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 33. North wind 5 to 10 mph becoming east after midnight.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 51. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 80.
Thursday Night
Showers likely and possibly a thunderstorm, then showers after 1am. Low around 54. Chance of precipitation is 80%.
Friday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Donnellson IA
 40.64°N 91.62°W (Elev. 699 ft)
Last Update:
11:06 am CDT Apr 19, 2026
Forecast Valid:
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 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