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.

Fair

57°F

14°C

Humidity 69%
Wind Speed S 14 mph
Barometer 29.89 in (1012.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 4 Nov 7:56 pm CST
Extended Forecast for

Savanna IL

  • Tonight

    Tonight: Mostly clear, with a low around 47. South wind around 10 mph becoming west after midnight.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 35 mph.

    High: 57 °F

    Sunny and
    Breezy then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 58. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers after noon. Mostly cloudy, with a high near 51.

    High: 51 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 47. South wind around 10 mph becoming west after midnight.
Wednesday
Sunny, with a high near 57. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Mostly clear, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 58. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 34.
Saturday
A 50 percent chance of showers after noon. Mostly cloudy, with a high near 51.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 20.
Veterans Day
Partly sunny, with a high near 47.
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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:
4:51 pm CST Nov 4, 2025
Forecast Valid:
8pm CST Nov 4, 2025-6pm CST Nov 11, 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