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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 4:51 am CST Nov 28, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Increasing Clouds on Today 90% chance of snow on Tonight 100% chance of rain, snow, & sleet on Saturday Mostly Cloudy on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday
High: 39°F Low: 30°F High: 39°F High: 30°F High: 29°F High: 31°F High: 39°F High: 35°F
Low: 25°F Low: 17°F Low: 19°F Low: 19°F Low: 24°F  
Increasing Clouds Snow Rain, Snow, & Sleet Mostly Cloudy Mostly Cloudy Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
21°
Clear
as of 5:55 AM CST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: VFR
Wind Data
3 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
21°
Clear
as of 5:53 AM CST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: VFR
Wind Data
5 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
25°
Clear
as of 5:55 AM CST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.48 in.
Flight Rule: VFR
Wind Data
3 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
21°
Mostly Clear
as of 5:51 AM CST
Rel. Humidity: 85%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.46 in.
Flight Rule: VFR
Wind Data
3 MPH
290° West
Cloud Level(s): Few at 5000ft
Increasing Clouds on Today Today... Increasing clouds, with a high near 39. Northwest wind around 5 mph becoming calm in the morning.

90% chance of snow Tonight Tonight... Snow, mainly after 4am. Low around 30. Southeast wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

100% chance of rain, snow, & sleet Saturday Saturday... Snow, possibly mixed with sleet before 11am, then rain and snow, possibly mixed with sleet between 11am and noon, then rain after noon. High near 39. Breezy, with a southeast wind 13 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

70% chance of rain & snow Saturday Night Saturday Night... Rain likely, mixing with snow after 9pm, then gradually ending. Cloudy, with a low around 25. South wind 14 to 16 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 30. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 17.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 29.

40% chance of snow Monday Night Monday Night... A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 19.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 31.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 19.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 39.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 24.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 35.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 06:56 AM
Sunset: 4:40 PM
Civil Sunrise:06:27 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 05:54 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 6:14 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.