National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Fort Madison Municipal Airport (KFSW)

Lat: 40.66°NLon: 91.33°WElev: 719ft.

Fair

36°F

2°C

Humidity 70%
Wind Speed NW 7 mph
Barometer 29.94 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 16 Nov 2:55 am CST
Extended Forecast for

Hamilton IL

  • Overnight

    Overnight: Clear, with a steady temperature around 41. North wind around 5 mph.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 54. Northwest wind around 5 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 56. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Rain Likely

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Clear, with a steady temperature around 41. North wind around 5 mph.
Sunday
Sunny, with a high near 54. Northwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 36. Calm wind.
Monday
Increasing clouds, with a high near 56. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Tuesday
Mostly cloudy, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 42.
Wednesday
Partly sunny, with a high near 59.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 44.
Thursday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton IL
 40.39°N 91.39°W (Elev. 574 ft)
Last Update:
2:36 am CST Nov 16, 2025
Forecast Valid:
3am CST Nov 16, 2025-6pm CST Nov 22, 2025
 
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