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

Multiple Hazards through Upcoming Weekend

The threat of severe thunderstorms will exist in the Midwest and Ohio Valley through Friday. Elevated to critical fire weather conditions will be in place across the Four-Corners through the weekend. Early season heat with likely record high temperatures will spread from the South into the Ohio Valley, Mid-Atlantic, and Northeast on Friday, Saturday and perhaps Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

68°F

20°C

Humidity 81%
Wind Speed S 8 mph
Barometer 29.40 in (995.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 May 1:56 am CDT
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.

    Heavy Rain

    Low: 64 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 4pm. Cloudy, with a high near 71. South wind around 10 mph becoming northwest in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 71 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming southwest in the evening.

    Mostly Cloudy
    then Chance
    Showers

    Low: 52 °F

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 60. North wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 60 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms then
    Chance
    Showers

    Low: 47 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 63.

    Mostly Sunny

    High: 63 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 43.

    Mostly Clear

    Low: 43 °F

  • Monday

    Monday: Mostly sunny, with a high near 66.

    Mostly Sunny

    High: 66 °F

  • Monday
    Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 48.

    Chance
    Showers

    Low: 48 °F

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.
Friday
A 50 percent chance of showers and thunderstorms before 4pm. Cloudy, with a high near 71. South wind around 10 mph becoming northwest in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. Northwest wind around 5 mph becoming southwest in the evening.
Saturday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 60. North wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 66.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 64.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 66.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 72.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
12:16 am CDT May 20, 2022
Forecast Valid:
2am CDT May 20, 2022-6pm CDT May 26, 2022
 
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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