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.

Fair and Windy

63°F

17°C

Humidity 34%
Wind Speed W 28 G 36 mph
Barometer 29.74 in (1007.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 27 Feb 4:56 pm CST
Extended Forecast for

Savanna IL

  • Tonight

    Tonight: Increasing clouds, with a low around 25. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A slight chance of snow between 9am and 4pm. Mostly cloudy, with a high near 35. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 18. North wind 5 to 10 mph.

    Low: 18 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 34. Northeast wind around 5 mph.

    High: 34 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 25. West wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Saturday
A slight chance of snow between 9am and 4pm. Mostly cloudy, with a high near 35. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 18. North wind 5 to 10 mph.
Sunday
Mostly cloudy, with a high near 34. Northeast wind around 5 mph.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 42.
Monday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 30.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Tuesday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 29.
Wednesday
A 40 percent chance of rain after noon. Partly sunny, with a high near 50.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday
Rain likely. Cloudy, with a high near 52. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 50 percent chance of rain. Cloudy, with a high near 56.
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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:
4:26 pm CST Feb 27, 2026
Forecast Valid:
5pm CST Feb 27, 2026-6pm CST Mar 6, 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