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

43°F

6°C

Humidity 93%
Wind Speed SW 6 mph
Barometer 30.12 in
Dewpoint 41°F (5°C)
Visibility 8.00 mi
Wind Chill39°F (4°C)
Last update 23 Nov 1:35 am CST
Extended Forecast for

Hamilton IL

  • Overnight

    Overnight: Mostly clear, with a low around 34. West wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Calm wind becoming south around 5 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph after midnight.

    Low: 40 °F

    Increasing
    Clouds

  • Monday

    Monday: Rain likely, mainly after noon. Mostly cloudy, with a high near 55. South wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 55 °F

    Slight Chance
    Rain then
    Rain Likely

  • Monday Night

    Monday Night: Rain, mainly before midnight. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain then
    Chance Rain

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 34. West wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 56. Calm wind becoming south around 5 mph.
Sunday Night
Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph after midnight.
Monday
Rain likely, mainly after noon. Mostly cloudy, with a high near 55. South wind 5 to 10 mph. Chance of precipitation is 70%.
Monday Night
Rain, mainly before midnight. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Mostly clear, with a low around 25.
Thanksgiving Day
Sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton IL
 40.39°N 91.39°W (Elev. 574 ft)
Last Update:
11:11 pm CST Nov 22, 2025
Forecast Valid:
2am CST Nov 23, 2025-6pm CST Nov 29, 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