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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Overcast

31°F

-1°C

Humidity 89%
Wind Speed NW 13 mph
Barometer 29.82 in (1011.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 6 Dec 12:56 am CST
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 17. Northwest wind around 5 mph.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 26. Northwest wind around 5 mph becoming calm in the morning.

    High: 26 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow. Steady temperature around 21. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 21 °F

    Snow Likely
    then Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 23. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 23 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -1.

    Low: -1 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 21.

    High: 21 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight. Cloudy, with a low around 28. Chance of precipitation is 60%.

    Low: 28 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 17. Northwest wind around 5 mph.
Saturday
Partly sunny, with a high near 26. Northwest wind around 5 mph becoming calm in the morning.
Saturday Night
Snow. Steady temperature around 21. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 23. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around -1.
Monday
Mostly cloudy, with a high near 21.
Monday Night
Mostly cloudy, with a low around 13.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Rain likely, mainly before midnight. Cloudy, with a low around 28. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 12.
Thursday
Mostly cloudy, with a high near 25.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Friday
Partly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
10:51 pm CST Dec 5, 2025
Forecast Valid:
1am CST Dec 6, 2025-6pm CST Dec 12, 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