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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 10:56 am CST Jan 17, 2026 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Sunday M.L.King Day Tuesday Wednesday Thursday Friday
20% chance of snow on This Afternoon 20% chance of snow on Tonight 20% chance of snow on Sunday Sunny on M.L.King Day Sunny on Tuesday Partly Sunny on Wednesday 20% chance of snow on Thursday 20% chance of rain on Friday
High: 26°F Low: 12°F High: 33°F High: 22°F High: 39°F High: 46°F High: 34°F High: 37°F
Low: 13°F Low: 11°F Low: 30°F Low: 21°F Low: 18°F  
Snow Snow Snow Sunny Sunny Partly Sunny Snow Rain
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Current Conditions at
SCOTT AFB - (KBLV)
25°
Feels like 13°F
Mostly Cloudy
as of 12:44 PM CST
Rel. Humidity: 68%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
13 MPH
280° West
Cloud Level(s): Broken at 2000ft, Broken at 2800ft
Current Conditions at
EAST ST LOUIS - (KCPS)
23°
Feels like 11°F
Cloudy
Light Snow
as of 12:44 PM CST
Rel. Humidity: 73%
Dew Point: 16°F
Visibility: 5 Miles
Pressure: 30.17 in.
Flight Rule: MVFR
Wind Data
13 MPH
Gust: 24 MPH
300° Northwest
Cloud Level(s): Broken at 2300ft, Broken at 3200ft, Solid Overcast at 4400ft
Current Conditions at
SPARTA - (KSAR)
28°
Feels like 15°F
Partly Cloudy
as of 12:35 PM CST
Rel. Humidity: 39%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 28 MPH
270° West
Cloud Level(s): Scattered at 4300ft, Scattered at 5000ft, Scattered at 6000ft
20% chance of snow This Afternoon This Afternoon... A chance of flurries. Mostly cloudy, with a high near 26. West wind 14 to 16 mph, with gusts as high as 24 mph.
20% chance of snow Tonight Tonight... A chance of flurries before 9pm. Mostly cloudy, with a low around 12. West wind 5 to 11 mph, with gusts as high as 20 mph.
20% chance of snow Sunday Sunday... A chance of flurries after 10am. Increasing clouds, with a high near 33. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
20% chance of snow Sunday Night Sunday Night... A chance of flurries before 9pm. Partly cloudy, with a low around 13. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph.
Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 22. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 11.
Sunny on Tuesday Tuesday... Sunny, with a high near 39.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 30.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 46.
20% chance of rain & snow Wednesday Night Wednesday Night... A slight chance of rain before midnight, then a slight chance of snow. Partly cloudy, with a low around 21. Chance of precipitation is 20%.
20% chance of snow Thursday Thursday... A 20 percent chance of snow. Mostly sunny, with a high near 34.
20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow. Partly cloudy, with a low around 18.
20% chance of rain Friday Friday... A 20 percent chance of rain. Mostly sunny, with a high near 37.
Sun Almanac for Douglas, Illinois
Sunrise: 07:15 AM
Sunset: 5:05 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:34 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:38 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.