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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 8:36 pm CST Dec 18, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Christmas Day
Clearing on Tonight Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Christmas Day
Low: 25°F High: 39°F High: 55°F High: 42°F High: 47°F High: 63°F High: 67°F High: 70°F
Low: 32°F Low: 28°F Low: 27°F Low: 41°F Low: 51°F Low: 55°F  
Clearing Sunny Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny Mostly Cloudy Mostly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
34°
Feels like 20°F
Cloudy
as of 9:03 PM CST
Rel. Humidity: 69%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: VFR
Wind Data
30 MPH
Gust: 43 MPH
290° West
Cloud Level(s): Broken at 3400ft, Solid Overcast at 6500ft
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Feels like 20°F
Cloudy
Light Snow
as of 8:53 PM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 9 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
30 MPH
Gust: 44 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3900ft
Current Conditions at
SPARTA - (KSAR)
34°
Feels like 22°F
Cloudy
as of 9:35 PM CST
Rel. Humidity: 74%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 30 MPH
300° Northwest
Cloud Level(s): Broken at 2700ft, Solid Overcast at 3500ft
Current Conditions at
ST LOUIS - (KSTL)
30°
Feels like 17°F
Cloudy
Light Snow
as of 9:35 PM CST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 40 MPH
300° Northwest
Cloud Level(s): Solid Overcast at 3300ft
Clearing on Tonight Tonight... Cloudy early, then gradual clearing, with a low around 25. Blustery, with a northwest wind 18 to 23 mph, with gusts as high as 40 mph.

Sunny on Friday Friday... Sunny, with a high near 39. Northwest wind 7 to 16 mph becoming south in the afternoon. Winds could gust as high as 30 mph.

Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 32. South wind 7 to 14 mph, with gusts as high as 23 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 55. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 28. Northwest wind 3 to 7 mph.

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

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 27.

Partly Sunny on Monday Monday... Partly sunny, with a high near 47.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 41.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 63.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 51.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 67.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 55.

Mostly Sunny on Christmas Day Christmas Day... Mostly sunny, with a high near 70.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:12 AM
Sunset: 4:41 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:17 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.