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

Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

Monsoonal flow coinciding with a frontal boundary will focus more showers and thunderstorms across the central Great Basin, central Rockies, Southwest into the Southern Plains. Heavy rainfall may bring about instances of flash flooding. Meanwhile, record setting heat continues for the Pacific Northwest through Monday. Heat combining with dry conditions could allow for any fires to quickly spread. Read More >

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Partly Cloudy

72°F

22°C

Humidity 53%
Wind Speed NW 16 G 22 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 24 Aug 1:56 pm CDT
Extended Forecast for

Savanna IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 70. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Northwest wind 5 to 10 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. Northwest wind 5 to 10 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 70. Northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 48. Northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 70. Northwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 47. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.16°W (Elev. 673 ft)
Last Update:
12:15 pm CDT Aug 24, 2025
Forecast Valid:
2pm CDT Aug 24, 2025-6pm CDT Aug 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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