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.

Overcast

18°F

-8°C

Humidity 74%
Wind Speed NW 17 mph
Barometer 30.29 in (1027.4 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 22 Feb 12:56 am CST
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: A chance of flurries. Mostly cloudy, with a low around 15. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries before 8am. Mostly cloudy, with a high near 25. Wind chill values as low as zero. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph.

    High: 25 °F

    Chance
    Flurries and
    Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11. Wind chill values as low as -5. North wind around 15 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 29. Wind chill values as low as zero. North wind 5 to 10 mph.

    High: 29 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then a chance of snow. Partly cloudy, with a low around 19. Chance of precipitation is 30%.

    Low: 19 °F

    Chance Rain
    then Chance
    Snow

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 15. Northwest wind around 15 mph, with gusts as high as 30 mph.
Sunday
A chance of flurries before 8am. Mostly cloudy, with a high near 25. Wind chill values as low as zero. Blustery, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 11. Wind chill values as low as -5. North wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 29. Wind chill values as low as zero. North wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
A chance of rain before midnight, then a chance of snow. Partly cloudy, with a low around 19. Chance of precipitation is 30%.
Thursday
A 30 percent chance of snow before noon. Mostly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 45.
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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:
11:02 pm CST Feb 21, 2026
Forecast Valid:
1am CST Feb 22, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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