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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 9:31 pm CST Dec 26, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday New Year's Day Friday
Morning Fog on Tonight Morning Fog on Saturday 80% chance of thunderstorms on Sunday Mostly Sunny on Monday Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Sunny on Friday
Low: 44°F High: 64°F High: 73°F High: 27°F High: 36°F High: 42°F High: 31°F High: 31°F
Low: 59°F Low: 21°F Low: 19°F Low: 27°F Low: 20°F Low: 16°F  
Morning Fog Morning Fog Thunderstorms Mostly Sunny Sunny Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
45°
Clear
as of 9:55 PM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 8 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
46°
Clear
as of 9:53 PM CST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 8 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SPARTA - (KSAR)
50°
Clear
as of 9:55 PM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
3 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
45°
Mostly Cloudy
as of 9:51 PM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 25000ft
Morning Fog on Tonight Tonight... Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 44. Light and variable wind.

Morning Fog on Saturday Saturday... Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 64. Southeast wind 5 to 10 mph.

20% chance of rain Saturday Night Saturday Night... A 20 percent chance of rain after 2am. Cloudy, with a low around 59. South wind 8 to 10 mph.

80% chance of thunderstorms Sunday Sunday... A chance of rain and thunderstorms before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 73. South wind 9 to 16 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

60% chance of rain & snow Sunday Night Sunday Night... Rain likely, possibly mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 27. Blustery.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 19.

Sunny on Tuesday Tuesday... Sunny, with a high near 36.

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

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

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

Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 31.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 16.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 31.

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 07:16 AM
Sunset: 4:46 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:49 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:21 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.