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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 2:51 am CST Dec 23, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Christmas Day Friday Saturday Sunday Monday
Clear on Overnight Mostly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Christmas Day Sunny on Friday Partly Sunny on Saturday 20% chance of rain on Sunday Sunny on Monday
Low: 37°F High: 64°F High: 65°F High: 67°F High: 73°F High: 71°F High: 41°F High: 28°F
Low: 45°F Low: 55°F Low: 59°F Low: 53°F Low: 38°F Low: 20°F  
Clear Mostly Sunny Mostly Cloudy Mostly Cloudy Sunny Partly Sunny Rain Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
43°
Clear
as of 1:55 AM CST
Rel. Humidity: 100%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
8 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Clear
as of 1:53 AM CST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 9 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
6 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
50°
Feels like 45°F
Clear
as of 2:35 AM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
10 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
43°
Mostly Clear
as of 1:51 AM CST
Rel. Humidity: 86%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
3 MPH
170° South
Cloud Level(s): Few at 25000ft
Clear on Overnight Overnight... Clear, with a low around 37. Southwest wind around 6 mph.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 64. Southwest wind 5 to 8 mph becoming northwest in the afternoon.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 45. North wind around 5 mph becoming light and variable after midnight.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 65. Light and variable wind becoming south 5 to 9 mph in the morning.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 55. Southwest wind 5 to 7 mph.
Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 67.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 59.
Sunny on Friday Friday... Sunny, with a high near 73.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 53.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 71.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 38.
20% chance of rain Sunday Sunday... A 20 percent chance of showers. Mostly sunny, with a high near 41.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 20.
Sunny on Monday Monday... Sunny, with a high near 28.
Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:15 AM
Sunset: 4:44 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:19 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.