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.

Light Rain

61°F

16°C

Humidity 94%
Wind Speed S 15 G 20 mph
Barometer 29.75 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 7 Mar 2:55 am CST
Extended Forecast for

Hamilton IL

  • Overnight

    Overnight: Rain and possibly a thunderstorm, mainly before 5am, then a chance of rain and thunderstorms after 5am. Steady temperature around 61. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 8am. Mostly cloudy, with a temperature falling to around 45 by 10am. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 56 °F⇓

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. West wind 5 to 10 mph becoming southwest after midnight.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Chance
    T-storms then
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Rain

Detailed Forecast

Overnight
Rain and possibly a thunderstorm, mainly before 5am, then a chance of rain and thunderstorms after 5am. Steady temperature around 61. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 20 percent chance of rain before 8am. Mostly cloudy, with a temperature falling to around 45 by 10am. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 34. West wind 5 to 10 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 66. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 48.
Monday
Sunny, with a high near 74.
Monday Night
Clear, with a low around 52.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 75. Chance of precipitation is 80%.
Tuesday Night
Rain. Low around 42. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of rain before noon. Cloudy, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Mostly cloudy, with a high near 62.
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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:
2:07 am CST Mar 7, 2026
Forecast Valid:
3am CST Mar 7, 2026-6pm CDT Mar 13, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation