Severe Weather and Heavy Rainfall Potential for the Plains; Coastal Low Across the mid-Atlantic

An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

67°F

19°C

Humidity 84%
Wind Speed E 8 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 15 Sep 2:56 am CDT
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: Mostly clear, with a low around 62. East wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Southeast wind around 5 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. East wind around 5 mph becoming calm.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming southeast around 5 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 62. East wind around 5 mph.
Monday
Sunny, with a high near 89. Southeast wind around 5 mph.
Monday Night
Partly cloudy, with a low around 60. East wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 88. Calm wind becoming southeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 60.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 82.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 78.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 59.
Sunday
Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
3:02 am CDT Sep 15, 2025
3am CDT Sep 15, 2025-6pm CDT Sep 21, 2025
 
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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