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

61°F

16°C

Humidity 88%
Wind Speed NE 8 mph
Barometer 30.15 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Sep 1:16 am CDT
Extended Forecast for

Fort Madison IA

  • Overnight

    Overnight: A 40 percent chance of showers, mainly after 2am. Patchy fog after 5am. Otherwise, cloudy, with a low around 57. Northeast wind around 10 mph.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A 50 percent chance of showers, mainly before 11am. Patchy fog before 8am. Otherwise, cloudy, with a high near 64. Northeast wind around 10 mph.

    High: 64 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51. Northeast wind around 5 mph.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. Northeast wind around 5 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly after 2am. Patchy fog after 5am. Otherwise, cloudy, with a low around 57. Northeast wind around 10 mph.
Tuesday
A 50 percent chance of showers, mainly before 11am. Patchy fog before 8am. Otherwise, cloudy, with a high near 64. Northeast wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 51. Northeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 70. Northeast wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Partly sunny, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 73.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 70.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Madison IA
 40.63°N 91.33°W (Elev. 525 ft)
Last Update:
1:26 am CDT Sep 22, 2026
Forecast Valid:
1am CDT Sep 22, 2026-6pm CDT Sep 28, 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