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.

Light Rain

48°F

9°C

Humidity 66%
Wind Speed NW 5 mph
Barometer 29.83 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 5 May 5:35 am CDT
Extended Forecast for

Hamilton ILSimilar City Names

  • Overnight

    Overnight: Scattered showers. Cloudy, with a low around 50. Northeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers. Cloudy, with a high near 61. North wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 61 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 44. North wind around 5 mph.

    Low: 44 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60. North wind 5 to 10 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers. Cloudy, with a low around 50. Northeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers. Cloudy, with a high near 61. North wind 5 to 10 mph. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 44. North wind around 5 mph.
Wednesday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 60. North wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 48.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Sunny, with a high near 78.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton ILSimilar City Names
 40.39°N 91.36°W (Elev. 512 ft)
Last Update:
5:16 am CDT May 5, 2026
Forecast Valid:
5am CDT May 5, 2026-6pm CDT May 11, 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