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

Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

21°F

-6°C

Humidity 57%
Wind Speed N 16 mph
Barometer 30.09 in (1020.4 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 14 Jan 5:56 pm CST
Extended Forecast for

Tri-Township Airport IL

  • Tonight

    Tonight: Clear, with a low around 14. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Clear

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 29. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 29 °F

    Sunny then
    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a temperature rising to around 33 by 4am. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 27 °F⇑

    Snow Likely
    then Chance
    Snow

  • Friday

    Friday: A slight chance of snow before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 15.

    High: 15 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 18.

    High: 18 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 14. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 29. Northwest wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a temperature rising to around 33 by 4am. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
A slight chance of snow before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 36. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 12.
Saturday
Mostly cloudy, with a high near 15.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 18.
Sunday Night
Mostly cloudy, with a low around 6.
M.L.King Day
Mostly sunny, with a high near 13.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 19.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Partly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tri-Township Airport IL
 42.05°N 90.13°W (Elev. 584 ft)
Last Update:
6:36 pm CST Jan 14, 2026
Forecast Valid:
6pm CST Jan 14, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

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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