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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 3:25 am CST Jan 19, 2026 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

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Overnight M.L.King Day Tuesday Wednesday Thursday Friday Saturday Sunday
Cloudy on Overnight Sunny on M.L.King Day Mostly Sunny on Tuesday Mostly Sunny on Wednesday Sunny on Thursday Mostly Cloudy on Friday 20% chance of snow on Saturday Mostly Sunny on Sunday
Low: 12°F High: 22°F High: 38°F High: 46°F High: 36°F High: 27°F High: 15°F High: 25°F
Low: 12°F Low: 28°F Low: 24°F Low: 19°F Low: 3°F Low: 7°F  
Cloudy Sunny Mostly Sunny Mostly Sunny Sunny Mostly Cloudy Snow Mostly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
28°
Feels like 17°F
Cloudy
as of 2:55 AM CST
Rel. Humidity: 54%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
13 MPH
350° North
Cloud Level(s): Solid Overcast at 4500ft
Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Feels like 15°F
Mostly Cloudy
as of 2:53 AM CST
Rel. Humidity: 54%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 29 MPH
330° Northwest
Cloud Level(s): Broken at 4700ft
Current Conditions at
SPARTA - (KSAR)
28°
Mostly Cloudy
as of 3:15 AM CST
Rel. Humidity: 58%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
5 MPH
300° Northwest
Cloud Level(s): Broken at 5000ft
Current Conditions at
ST LOUIS - (KSTL)
25°
Feels like 12°F
Mostly Cloudy
as of 2:51 AM CST
Rel. Humidity: 58%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 29 MPH
330° Northwest
Cloud Level(s): Broken at 4200ft
Cloudy on Overnight Overnight... Partly cloudy, with a low around 12. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 29 mph.

Sunny on M.L.King Day M.L.King Day... Sunny, with a high near 22. Blustery, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 29 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 12. West wind around 5 mph becoming light and variable after midnight.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 38. Light south wind becoming southwest 5 to 9 mph in the morning.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 28. South wind 8 to 13 mph, with gusts as high as 23 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 46.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 24.

Sunny on Thursday Thursday... Sunny, with a high near 36.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 19.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 27.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow. Mostly cloudy, with a low around 3.

20% chance of snow Saturday Saturday... A 20 percent chance of snow. Mostly cloudy and cold, with a high near 15.

30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 7.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 25.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:14 AM
Sunset: 5:08 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:36 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 6:09 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:40 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.