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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 5:11 am CST Dec 31, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Today Tonight New Year's Day Friday Saturday Sunday Monday Tuesday
Partly Sunny on Today Cloudy on Tonight Partly Sunny on New Year's Day Mostly Cloudy on Friday Mostly Sunny on Saturday Partly Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday
High: 43°F Low: 26°F High: 39°F High: 43°F High: 40°F High: 45°F High: 57°F High: 54°F
Low: 28°F Low: 25°F Low: 24°F Low: 34°F Low: 36°F  
Partly Sunny Cloudy Partly Sunny Mostly Cloudy Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
28°
Clear
as of 4:55 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Clear
as of 4:53 AM CST
Rel. Humidity: 63%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
32°
Clear
as of 5:35 AM CST
Rel. Humidity: 59%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
5 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
28°
Partly Cloudy
as of 4:51 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
7 MPH
250° West
Cloud Level(s): Scattered at 25000ft
Partly Sunny on Today Today... Partly sunny, with a high near 43. West wind 7 to 10 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 26. West wind around 6 mph becoming light and variable.
Partly Sunny on New Year's Day New Year's Day... Partly sunny, with a high near 39. Northeast wind around 5 mph becoming calm in the morning.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 28. Calm wind.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 43. Calm wind becoming northeast around 6 mph in the afternoon.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 25.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 24.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 45.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 34.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 57.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 36.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 54.
Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:17 AM
Sunset: 4:49 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:19 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:52 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:24 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.