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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 10:26 am CST Nov 22, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
Mostly Sunny on Today Cloudy on Tonight Mostly Sunny on Sunday 60% chance of rain on Monday Partly Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday
High: 56°F Low: 43°F High: 59°F High: 57°F High: 65°F High: 49°F High: 47°F High: 46°F
Low: 42°F Low: 50°F Low: 36°F Low: 30°F Low: 28°F  
Mostly Sunny Cloudy Mostly Sunny Rain Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
SPARTA - (KSAR)
50°
Cloudy
as of 10:35 AM CST
Rel. Humidity: 87%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: MVFR
Wind Data
3 MPH
010° North
Cloud Level(s): Solid Overcast at 1200ft
Current Conditions at
ST LOUIS - (KSTL)
46°
Mostly Cloudy
as of 10:17 AM CST
Rel. Humidity: 87%
Dew Point: 43°F
Visibility: 7 Miles
Pressure: 30.15 in.
Flight Rule: MVFR
Wind Data
5 MPH
010° North
Cloud Level(s): Broken at 1000ft, Broken at 25000ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 56. Northwest wind around 6 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 43. Light west wind.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 59. Light and variable wind.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 42. Calm wind becoming southeast around 5 mph after midnight.

60% chance of rain Monday Monday... Showers likely after noon. Cloudy, with a high near 57. Southeast wind 5 to 10 mph. Chance of precipitation is 60%.

90% chance of rain Monday Night Monday Night... Showers, mainly before midnight. Low around 50. Chance of precipitation is 90%.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 65.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 36.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 49.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 30.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 47.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 28.

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

Current Radar Image


Sun Almanac for Douglas, Illinois
Sunrise: 06:50 AM
Sunset: 4:43 PM
Civil Sunrise:06:21 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 05:49 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:17 AM
Astro Sunset: 6:15 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.