National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

70°F

21°C

Humidity 100%
Wind Speed S 7 mph
Barometer 30.05 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 9 Sep 11:55 pm CDT
Extended Forecast for

Farmington IA

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly before 2am, then a slight chance of thunderstorms after 5am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 20 percent chance of showers before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Northeast wind around 5 mph.

    High: 81 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Northeast wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly before 2am, then a slight chance of thunderstorms after 5am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Northeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 60. Northeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 83. Calm wind.
Friday Night
Mostly clear, with a low around 65.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 84.
Sunday Night
Mostly cloudy, with a low around 68.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 90.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 64. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Farmington IA
 40.64°N 91.73°W (Elev. 643 ft)
Last Update:
6:56 pm CDT Sep 9, 2026
Forecast Valid:
12am CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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