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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 3:16 pm CST Dec 19, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Christmas Day Friday
Mostly Clear on Tonight Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Cloudy on Wednesday Mostly Sunny on Christmas Day Mostly Cloudy on Friday
Low: 32°F High: 56°F High: 44°F High: 50°F High: 63°F High: 68°F High: 73°F High: 67°F
Low: 30°F Low: 29°F Low: 45°F Low: 51°F Low: 58°F Low: 51°F  
Mostly Clear Sunny Mostly Sunny Partly Sunny Mostly Sunny Cloudy Mostly Sunny Mostly Cloudy
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Current Conditions at
SCOTT AFB - (KBLV)
39°
Clear
as of 2:55 PM CST
Rel. Humidity: 32%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
7 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Clear
as of 2:53 PM CST
Rel. Humidity: 29%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
3 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
39°
Clear
as of 3:15 PM CST
Rel. Humidity: 32%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
3 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
37°
Partly Cloudy
as of 2:51 PM CST
Rel. Humidity: 29%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
8 MPH
230° Southwest
Cloud Level(s): Scattered at 25000ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 32. South wind 7 to 14 mph, with gusts as high as 24 mph.

Sunny on Saturday Saturday... Sunny, with a high near 56. South wind 8 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 30. North wind 3 to 8 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. Light and variable wind becoming northeast around 5 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 29. Southeast wind 3 to 7 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 50.

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

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

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

Cloudy on Wednesday Wednesday... Cloudy, with a high near 68.

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

Mostly Sunny on Christmas Day Christmas Day... Mostly sunny, with a high near 73.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 51.

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

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:13 AM
Sunset: 4:42 PM
Civil Sunrise:06:43 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:45 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.