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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 7:31 pm CST Dec 20, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Cloudy on Tonight Mostly Sunny on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Cloudy on Wednesday Sunny on Christmas Day Partly Sunny on Friday Mostly Cloudy on Saturday
Low: 27°F High: 44°F High: 52°F High: 63°F High: 67°F High: 74°F High: 67°F High: 58°F
Low: 29°F Low: 46°F Low: 43°F Low: 57°F Low: 54°F Low: 45°F  
Mostly Cloudy Mostly Sunny Partly Sunny Mostly Sunny Cloudy Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
SCOTT AFB - (KBLV)
36°
Feels like 28°F
Clear
as of 9:55 PM CST
Rel. Humidity: 59%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
10 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
37°
Feels like 30°F
Clear
as of 9:53 PM CST
Rel. Humidity: 51%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
10 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
37°
Clear
as of 10:15 PM CST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.25 in.
Flight Rule: VFR
Wind Data
5 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
34°
Partly Cloudy
as of 9:51 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
5 MPH
310° Northwest
Cloud Level(s): Scattered at 22000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 27. North wind around 6 mph becoming calm after midnight.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. Light and variable wind becoming northeast around 6 mph in the morning.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 29. Southeast wind around 7 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 52. South wind 7 to 10 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 46. South wind 5 to 9 mph.

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

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 43.

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

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 57.

Sunny on Christmas Day Christmas Day... Sunny, with a high near 74.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 54.

Partly Sunny on Friday Friday... Partly sunny, with a high near 67.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 45.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 58.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:13 AM
Sunset: 4:42 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:38 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.