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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 10:51 pm CST Dec 27, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday New Year's Day Friday Saturday
Cloudy on Overnight 70% chance of thunderstorms on Sunday Mostly Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Partly Sunny on Friday Mostly Cloudy on Saturday
Low: 58°F High: 69 °F High: 28°F High: 34°F High: 45°F High: 40°F High: 42°F High: 47°F
Low: 20°F Low: 17°F Low: 25°F Low: 27°F Low: 20°F Low: 30°F  
Cloudy Thunderstorms Mostly Sunny Sunny Mostly Sunny Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
SCOTT AFB - (KBLV)
64°
Partly Cloudy
as of 11:55 PM CST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
9 MPH
220° Southwest
Cloud Level(s): Scattered at 1700ft
Current Conditions at
EAST ST LOUIS - (KCPS)
64°
Clear
as of 11:53 PM CST
Rel. Humidity: 88%
Dew Point: 61°F
Visibility: 9 Miles
Pressure: 29.73 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
66°
Cloudy
as of 11:55 PM CST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
15 MPH
Gust: 18 MPH
200° South
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
ST LOUIS - (KSTL)
63°
Mostly Clear
as of 11:51 PM CST
Rel. Humidity: 93%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Few at 10000ft
Cloudy on Overnight Overnight... Cloudy, with a low around 58. South wind around 9 mph.

70% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Cloudy, with a temperature rising to near 69 by noon, then falling to around 54 during the remainder of the day. Breezy, with a south wind 10 to 15 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%.

30% chance of rain Sunday Night Sunday Night... A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 41 mph.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 28. Breezy, with a northwest wind 15 to 23 mph, with gusts as high as 33 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 17. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 34.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 25.

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

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 27.

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 40.

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

Partly Sunny on Friday Friday... Partly sunny, with a high near 42.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 30.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 47.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:16 AM
Sunset: 4:47 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:22 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.