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

57°F

14°C

Humidity 62%
Wind Speed SW 20 mph
Barometer 29.93 in (1013.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 16 Feb 9:56 am CST
Extended Forecast for

Savanna IL

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 64. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. South wind around 5 mph becoming east after midnight.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 48. Southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before noon. Partly sunny, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 64. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 39. South wind around 5 mph becoming east after midnight.
Tuesday
Mostly cloudy, with a high near 59. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 48. Southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
A 40 percent chance of rain after noon. Mostly sunny, with a high near 56.
Thursday Night
Rain likely before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Friday
A chance of rain and snow before noon. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 39.
Saturday Night
A chance of rain and snow. Partly cloudy, with a low around 19. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 32.
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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:
5:46 am CST Feb 16, 2026
Forecast Valid:
10am CST Feb 16, 2026-6pm CST Feb 22, 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