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

39°F

4°C

Humidity 87%
Wind Speed W 15 mph
Barometer 29.88 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 9 Jan 6:35 am CST
Extended Forecast for

Hamilton ILSimilar City Names

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a steady temperature around 43. West wind 10 to 15 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 43 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A chance of rain after 1am, mixing with snow after 2am. Mostly cloudy, with a low around 31. North wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 40%.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly cloudy, then gradually becoming sunny, with a high near 41. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 21. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a steady temperature around 43. West wind 10 to 15 mph becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
A chance of rain after 1am, mixing with snow after 2am. Mostly cloudy, with a low around 31. North wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 40%.
Saturday
A 20 percent chance of rain after noon. Mostly cloudy, then gradually becoming sunny, with a high near 41. West wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 21. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 34.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 47.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton ILSimilar City Names
 40.39°N 91.36°W (Elev. 512 ft)
Last Update:
6:31 am CST Jan 9, 2026
Forecast Valid:
6am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

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Chance of Precipitation