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

Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues

Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Overcast

41°F

5°C

Humidity 82%
Wind Speed W 13 mph
Barometer 29.67 in (1005.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 13 Jan 7:56 pm CST
Extended Forecast for

De Witt IA

  • Tonight

    Tonight: A chance of flurries after 4am. Mostly cloudy, with a low around 24. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Flurries and
    Blustery

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 23 by 9am. Blustery, with a north wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 27 °F⇓

    Becoming
    Sunny and
    Blustery

  • Wednesday Night

    Wednesday Night: Clear, with a low around 12. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 28. Northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 28 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow, mainly before midnight. Low around 25. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 25 °F

    Snow then
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10.

    Low: 10 °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 3.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of flurries after 4am. Mostly cloudy, with a low around 24. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a temperature falling to around 23 by 9am. Blustery, with a north wind 15 to 25 mph, with gusts as high as 40 mph.
Wednesday Night
Clear, with a low around 12. North wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
Increasing clouds, with a high near 28. Northwest wind 5 to 10 mph becoming south in the afternoon.
Thursday Night
Snow, mainly before midnight. Low around 25. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Mostly cloudy, with a high near 15.
Saturday Night
Mostly cloudy, with a low around 3.
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 18.
Monday Night
Partly cloudy, with a low around 2.
Tuesday
Mostly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Witt IA
 41.82°N 90.55°W (Elev. 653 ft)
Last Update:
6:56 pm CST Jan 13, 2026
Forecast Valid:
8pm CST Jan 13, 2026-6pm CST Jan 20, 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