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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 5:06 am CST Dec 15, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on Today Mostly Clear on Tonight Sunny on Tuesday Sunny on Wednesday 70% chance of thunderstorms on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday Partly Sunny on Sunday
High: 39°F Low: 25°F High: 50°F High: 53°F High: 57°F High: 38°F High: 57°F High: 49°F
Low: 34°F Low: 43°F Low: 20°F Low: 31°F Low: 35°F  
Sunny Mostly Clear Sunny Sunny Thunderstorms Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
14°
Feels like 1°F
Clear
as of 7:55 AM CST
Rel. Humidity: 72%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.47 in.
Flight Rule: VFR
Wind Data
9 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
12°
Feels like -1°F
Clear
as of 7:53 AM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.46 in.
Flight Rule: VFR
Wind Data
10 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
14°
Feels like 1°F
Clear
as of 7:55 AM CST
Rel. Humidity: 66%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.50 in.
Flight Rule: VFR
Wind Data
9 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
16°
Feels like 1°F
Partly Cloudy
as of 7:51 AM CST
Rel. Humidity: 56%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
14 MPH
180° South
Cloud Level(s): Scattered at 25000ft
Sunny on Today Today... Sunny, with a high near 39. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 25. Southwest wind around 7 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 50. South wind 6 to 13 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 34. South wind 5 to 9 mph becoming light southwest after midnight.

Sunny on Wednesday Wednesday... Sunny, with a high near 53. Calm wind becoming southeast 5 to 8 mph in the afternoon.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 43.

70% chance of thunderstorms Thursday Thursday... Rain likely and possibly a thunderstorm. Partly sunny, with a high near 57. Breezy. Chance of precipitation is 70%.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 20.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 38.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 31.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 57.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 35.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 49.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:10 AM
Sunset: 4:40 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:07 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:15 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.