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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fog/Mist

41°F

5°C

Humidity 93%
Wind Speed SE 16 mph
Barometer 29.78 in (1009.5 mb)
Dewpoint 39°F (4°C)
Visibility 6.00 mi
Wind Chill33°F (1°C)
Last update 25 Dec 11:56 pm CST
Extended Forecast for

Tri-Township Airport IL

  • Overnight

    Overnight: Rain likely, mainly before 3am. Patchy dense fog. Otherwise, cloudy, with a low around 39. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely
    and Patchy
    Dense Fog

  • Friday

    Friday: Areas of dense fog before 11am. Otherwise, cloudy, with a high near 48. North wind 5 to 10 mph becoming northwest in the morning.

    High: 48 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 49. Southeast wind 5 to 10 mph.

    High: 49 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 41.

    Low: 41 °F

    Cloudy

  • Sunday

    Sunday: A 50 percent chance of rain. Mostly cloudy, with a high near 47. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.

    Low: 14 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain likely, mainly before 3am. Patchy dense fog. Otherwise, cloudy, with a low around 39. Southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Friday
Areas of dense fog before 11am. Otherwise, cloudy, with a high near 48. North wind 5 to 10 mph becoming northwest in the morning.
Friday Night
Mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 49. Southeast wind 5 to 10 mph.
Saturday Night
Cloudy, with a low around 41.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 47. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 30.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 15.
New Year's Day
Mostly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tri-Township Airport IL
 42.05°N 90.1°W (Elev. 607 ft)
Last Update:
11:36 pm CST Dec 25, 2025
Forecast Valid:
12am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation