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.

A Few Clouds

66°F

19°C

Humidity 88%
Wind Speed SE 10 mph
Barometer 29.81 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 Apr 8:15 am CDT
Extended Forecast for

4 Miles S Argyle IA

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 84. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Partly Sunny
    then T-storms
    Likely and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then a chance of showers. Low around 40. Southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 55. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 84. Breezy, with a south wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms before midnight, then a chance of showers. Low around 40. Southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Sunny, with a high near 55. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Argyle IA
 40.46°N 91.56°W (Elev. 499 ft)
Last Update:
6:32 am CDT Apr 17, 2026
Forecast Valid:
8am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation