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Exermont, Illinois Weather Forecast
Exermont, Illinois Weather
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Weather Forecast for Exermont, Illinois : St. Clair County
Issued: 4:56 pm CST Dec 21, 2025 Latitude: 38.6478274 Longitude: -90.0464946 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday Sunday
Cloudy on Tonight Increasing Clouds on Monday Sunny on Tuesday Mostly Cloudy on Wednesday Partly Sunny on Christmas Day Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday
Low: 27°F High: 53°F High: 64°F High: 71°F High: 75°F High: 68°F High: 62°F High: 42°F
Low: 45°F Low: 48°F Low: 58°F Low: 56°F Low: 47°F Low: 32°F  
Cloudy Increasing Clouds Sunny Mostly Cloudy Partly Sunny Sunny Mostly Cloudy Mostly Sunny
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Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Clear
as of 6:53 PM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SCOTT AFB - (KBLV)
32°
Clear
as of 6:55 PM CST
Rel. Humidity: 68%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ALTON - (KALN)
30°
Clear
as of 6:50 PM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.45 in.
Flight Rule: VFR
Wind Data
3 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
34°
Mostly Cloudy
as of 6:51 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
7 MPH
110° East
Cloud Level(s): Broken at 25000ft
Cloudy on Tonight Tonight... Partly cloudy, with a low around 27. Southeast wind around 6 mph.

Increasing Clouds on Monday Monday... Increasing clouds, with a high near 53. South wind 6 to 11 mph.

Mostly Clear on Monday Night Monday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 45. Southwest wind 5 to 9 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 64. West wind around 6 mph becoming calm in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph after midnight.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 71.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 58.

Partly Sunny on Christmas Day Christmas Day... Partly sunny, with a high near 75.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 56.

Sunny on Friday Friday... Sunny, with a high near 68.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 47.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 62.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 32.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 42.

Current Radar Image


Sun Almanac for Exermont, Illinois
Sunrise: 07:15 AM
Sunset: 4:42 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:18 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.