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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 1:36 pm CST Dec 3, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
30% chance of rain & snow on This Afternoon 40% chance of snow on Tonight Clearing on Thursday Mostly Sunny on Friday Partly Sunny on Saturday Mostly Cloudy on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday
High: 36°F Low: 15°F High: 24°F High: 39°F High: 40°F High: 34°F High: 33°F High: 45°F
Low: 15°F Low: 25°F Low: 27°F Low: 16°F Low: 23°F  
Rain & Snow Snow Clearing Mostly Sunny Partly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
36°
Mostly Clear
as of 1:55 PM CST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
7 MPH
240° Southwest
Cloud Level(s): Few at 9000ft, Few at 12000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
36°
Cloudy
as of 1:53 PM CST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
7 MPH
160° South
Cloud Level(s): Solid Overcast at 9000ft
Current Conditions at
SPARTA - (KSAR)
34°
Feels like 25°F
Partly Cloudy
as of 2:35 PM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Scattered at 10000ft
Current Conditions at
ST LOUIS - (KSTL)
36°
Cloudy
as of 1:51 PM CST
Rel. Humidity: 74%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
6 MPH
190° South
Cloud Level(s): Few at 7000ft, Solid Overcast at 9000ft
30% chance of rain & snow This Afternoon This Afternoon... A chance of sprinkles and flurries before 4pm, then a chance of rain and snow between 4pm and 5pm, then a chance of snow after 5pm. Cloudy, with a high near 36. South wind 3 to 6 mph. Chance of precipitation is 30%.

40% chance of snow Tonight Tonight... A chance of snow before 3am, then a chance of flurries between 3am and 4am. Cloudy, with a low around 15. Light and variable wind becoming north 9 to 14 mph in the evening. Chance of precipitation is 40%.

Clearing on Thursday Thursday... Cloudy through mid morning, then gradual clearing, with a high near 24. North wind 5 to 10 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 15. Light and variable wind.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 39. Calm wind becoming south around 5 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 25.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 40.

20% chance of freezing rain Saturday Night Saturday Night... A slight chance of freezing rain after midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.

Mostly Cloudy on Sunday Sunday... Mostly cloudy, with a high near 34.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 16.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 33.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 23.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:01 AM
Sunset: 4:39 PM
Civil Sunrise:06:31 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 05:58 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:26 AM
Astro Sunset: 6:13 PM
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