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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 7:36 pm CST Jan 2, 2026 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Cloudy on Tonight Clearing on Saturday Increasing Clouds on Sunday Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 50% chance of rain on Thursday 20% chance of rain on Friday
Low: 28°F High: 40°F High: 40°F High: 58°F High: 62°F High: 61°F High: 63°F High: 60°F
Low: 25°F Low: 30°F Low: 43°F Low: 40°F Low: 47°F Low: 48°F  
Cloudy Clearing Increasing Clouds Sunny Mostly Sunny Partly Sunny Rain Rain
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Current Conditions at
SCOTT AFB - (KBLV)
32°
Mostly Cloudy
as of 6:55 PM CST
Rel. Humidity: 80%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
3 MPH
0° North
Cloud Level(s): Few at 12000ft, Broken at 15000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
30°
Clear
as of 6:53 PM CST
Rel. Humidity: 80%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
30°
Partly Cloudy
as of 7:35 PM CST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 12000ft
Current Conditions at
ST LOUIS - (KSTL)
32°
Feels like 24°F
Cloudy
as of 6:51 PM CST
Rel. Humidity: 63%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
9 MPH
050° Northeast
Cloud Level(s): Broken at 13000ft, Solid Overcast at 22000ft
Cloudy on Tonight Tonight... Cloudy, with a low around 28. Calm wind becoming northeast around 6 mph in the evening.

Clearing on Saturday Saturday... Mostly cloudy through mid morning, then gradual clearing, with a high near 40. North wind 5 to 8 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 25. North wind around 6 mph becoming calm after midnight.

Increasing Clouds on Sunday Sunday... Increasing clouds, with a high near 40. Calm wind becoming southeast around 5 mph in the afternoon.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 30. South wind around 6 mph.

Sunny on Monday Monday... Sunny, with a high near 58.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 43.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 62.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 40.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 61.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 47.

50% chance of rain Thursday Thursday... A 50 percent chance of rain. Partly sunny, with a high near 63.

40% chance of rain Thursday Night Thursday Night... A 40 percent chance of rain. Partly cloudy, with a low around 48.

20% chance of rain Friday Friday... A 20 percent chance of rain. Partly sunny, with a high near 60.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:17 AM
Sunset: 4:51 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:20 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:26 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.