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

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Light Snow Fog/Mist

22°F

-6°C

Humidity 89%
Wind Speed Calm
Barometer 30.12 in (1021.5 mb)
Dewpoint 19°F (-7°C)
Visibility 2.00 mi
Last update 1 Dec 5:56 pm CST
Extended Forecast for

2 Miles ENE Port Byron IL

Winter Weather Advisory December 1, 06:16pm until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 1, 06:16pm until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • Tonight

    Low: 12 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 24. West wind 5 to 10 mph becoming south in the afternoon.

    High: 24 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a temperature falling to near 20 by 9pm, then rising to around 27 during the remainder of the night. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 20 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Mostly cloudy, with a high near 33. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -5.

    Low: -5 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 10.

    High: 10 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -4.

    Low: -4 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

Tonight
Snow, mainly before 8pm. Low around 12. Southwest wind around 5 mph becoming west after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Mostly cloudy, with a high near 24. West wind 5 to 10 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a temperature falling to near 20 by 9pm, then rising to around 27 during the remainder of the night. South wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A 50 percent chance of snow. Mostly cloudy, with a high near 33. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around -5.
Thursday
Sunny and cold, with a high near 10.
Thursday Night
Partly cloudy, with a low around -4.
Friday
Mostly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 28.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 13.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 3.
Monday
Mostly cloudy, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Port Byron IL
 41.64°N 90.3°W (Elev. 709 ft)
Last Update:
4:41 pm CST Dec 1, 2025
Forecast Valid:
6pm CST Dec 1, 2025-6pm CST Dec 8, 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