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

43°F

6°C

Humidity 87%
Wind Speed W 13 G 22 mph
Barometer 29.75 in
Dewpoint 39°F (4°C)
Visibility 9.00 mi
Wind Chill36°F (2°C)
Last update 6 Jan 3:55 pm CST
Extended Forecast for

Hamilton IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy during the evening, then mostly clear overnight, with a low around 33. West wind around 5 mph becoming south after midnight.

    Low: 33 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain. High near 57. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy during the evening, then mostly clear overnight, with a low around 33. West wind around 5 mph becoming south after midnight.
Wednesday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 43. South wind 5 to 10 mph.
Thursday
Rain. High near 57. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 46.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Saturday
A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton IL
 40.39°N 91.36°W (Elev. 512 ft)
Last Update:
3:16 pm CST Jan 6, 2026
Forecast Valid:
4pm CST Jan 6, 2026-6pm CST Jan 12, 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