Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

91°F

33°C

Humidity 49%
Wind Speed SW 9 G 16 mph
Barometer 30.00 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 1 Sep 11:55 am CDT
Extended Forecast for

Hamilton IL

Heat Advisory September 1, 12:14pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 12:14pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 77. South wind around 5 mph.

    Low: 77 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Heat index values as high as 102. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 102. Southwest wind around 10 mph.
Tonight
Clear, with a low around 77. South wind around 5 mph.
Wednesday
Sunny and hot, with a high near 96. Heat index values as high as 102. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 78. South wind around 5 mph.
Thursday
Sunny and hot, with a high near 96.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny and hot, with a high near 95.
Friday Night
Mostly clear, with a low around 75.
Saturday
Mostly sunny and hot, with a high near 96.
Saturday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 69.
Labor Day
Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton IL
 40.39°N 91.39°W (Elev. 574 ft)
12:01 pm CDT Sep 1, 2026
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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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