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

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

A Few Clouds

30°F

-1°C

Humidity 64%
Wind Speed NE 18 mph
Barometer 30.23 in (1025.1 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 28 Feb 4:56 pm CST
Extended Forecast for

Savanna IL

  • Tonight

    Tonight: Partly cloudy, with a low around 17. North wind around 5 mph.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36. Northeast wind around 5 mph.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. East wind around 5 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 44. Southeast wind 5 to 10 mph.

    High: 44 °F

    Partly Sunny

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 32. Chance of precipitation is 70%.

    Low: 32 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 47. Chance of precipitation is 70%.

    High: 47 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 17. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 36. Northeast wind around 5 mph.
Sunday Night
Mostly cloudy, with a low around 22. East wind around 5 mph.
Monday
Partly sunny, with a high near 44. Southeast wind 5 to 10 mph.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 32. Chance of precipitation is 70%.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 47. Chance of precipitation is 70%.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 37.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 58.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Friday Night
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
2:26 pm CST Feb 28, 2026
Forecast Valid:
5pm CST Feb 28, 2026-6pm CST Mar 7, 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