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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 10:01 pm CST Dec 1, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
100% chance of snow on Tonight Partly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday 20% chance of snow on Friday Partly Sunny on Saturday Mostly Cloudy on Sunday Partly Sunny on Monday
Low: 20°F High: 29°F High: 41°F High: 23°F High: 39°F High: 41°F High: 38°F High: 37°F
Low: 20°F Low: 15°F Low: 12°F Low: 25°F Low: 27°F Low: 19°F  
Snow Partly Sunny Partly Sunny Mostly Sunny Snow Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
28°
Cloudy
Light Snow Mist
as of 9:55 PM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 1 Miles
Pressure: 30.07 in.
Flight Rule: IFR
Wind Data
7 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
27°
Cloudy
Light Snow Mist
as of 10:04 PM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 1 Miles
Pressure: 30.08 in.
Flight Rule: IFR
Wind Data
6 MPH
300° Northwest
Cloud Level(s): Few at 700ft, Solid Overcast at 1100ft
Current Conditions at
SPARTA - (KSAR)
27°
Cloudy
Unknown Precip
as of 9:55 PM CST
Rel. Humidity: 100%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
ST LOUIS - (KSTL)
25°
Cloudy
Light Snow Mist
as of 10:02 PM CST
Rel. Humidity: 100%
Dew Point: 25°F
Visibility: 1 1/4 Miles
Pressure: 30.08 in.
Flight Rule: IFR
Wind Data
5 MPH
290° West
Cloud Level(s): Few at 600ft, Solid Overcast at 1800ft
100% chance of snow Tonight Tonight... Snow, mainly before midnight. Low around 20. Northwest wind 5 to 7 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 29. Northwest wind 5 to 7 mph becoming calm in the afternoon.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 20. Calm wind becoming south around 6 mph after midnight.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 41. South wind 5 to 7 mph becoming west in the afternoon.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 15. North wind 5 to 11 mph, with gusts as high as 20 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 23.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 12.

20% chance of snow Friday Friday... A 20 percent chance of snow before noon. Mostly sunny, with a high near 39.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 25.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 41.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 27.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 38.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 19.

Partly Sunny on Monday Monday... Partly sunny, with a high near 37.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 06:59 AM
Sunset: 4:40 PM
Civil Sunrise:06:30 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 05:57 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:25 AM
Astro Sunset: 6:13 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.