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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 10:06 pm CST Dec 16, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Tonight Sunny on Wednesday 90% chance of thunderstorms on Thursday Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
Low: 36°F High: 54°F High: 54 °F High: 39°F High: 56°F High: 46°F High: 47°F High: 56°F
Low: 43 °F Low: 23°F Low: 32°F Low: 31°F Low: 31°F Low: 39°F  
Mostly Cloudy Sunny Thunderstorms Sunny Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
37°
Feels like 30°F
Clear
as of 10:55 PM CST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
9 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Clear
as of 10:53 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
5 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
41°
Clear
as of 11:15 PM CST
Rel. Humidity: 52%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
7 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
43°
Feels like 37°F
Mostly Cloudy
as of 10:51 PM CST
Rel. Humidity: 48%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Broken at 25000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 36. Southwest wind 6 to 8 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 54. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of showers after midnight. Increasing clouds, with a temperature falling to near 43 by 9pm, then rising to around 51 during the remainder of the night. South wind 7 to 16 mph, with gusts as high as 26 mph.

90% chance of thunderstorms Thursday Thursday... Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 3pm. Temperature rising to near 54 by 8am, then falling to around 44 during the remainder of the day. South wind 16 to 18 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 23. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.

Sunny on Friday Friday... Sunny, with a high near 39.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 32.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 56.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 31.

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

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 31.

Partly Sunny on Monday Monday... Partly sunny, with a high near 47.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 39.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 56.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:12 AM
Sunset: 4:41 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:36 AM
Astro Sunset: 6:16 PM
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