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

41°F

5°C

Humidity 79%
Wind Speed NE 14 mph
Barometer 30.14 in (1021.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 3 Mar 6:56 pm CST
Extended Forecast for

Savanna IL

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Northeast wind around 5 mph becoming calm.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 3pm. Partly sunny, with a high near 52. East wind around 5 mph.

    High: 52 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 39. Calm wind. Chance of precipitation is 70%.

    Low: 39 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers before noon, then a slight chance of rain after noon. Mostly cloudy, with a high near 56. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.

    High: 56 °F

    Chance
    Showers then
    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 69. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 69 °F

    Rain

  • Friday Night

    Friday Night: Rain. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. Northeast wind around 5 mph becoming calm.
Wednesday
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 52. East wind around 5 mph.
Wednesday Night
Showers likely, mainly after midnight. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 39. Calm wind. Chance of precipitation is 70%.
Thursday
A chance of showers before noon, then a slight chance of rain after noon. Mostly cloudy, with a high near 56. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41.
Friday
Rain. High near 69. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Rain. Low around 45. Chance of precipitation is 80%.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 48.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 67.
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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:
7:06 pm CST Mar 3, 2026
Forecast Valid:
7pm CST Mar 3, 2026-6pm CDT Mar 10, 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