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Douglas, Illinois Weather Forecast
Douglas, Illinois Weather
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Weather Forecast for Douglas, Illinois : St. Clair County
Issued: 2:01 am CST Dec 18, 2025 Latitude: 38.4244948 Longitude: -89.9826053 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
30% chance of rain on Overnight 100% chance of rain on Thursday Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday 20% chance of rain on Wednesday
Low: 52°F High: 54 °F High: 41°F High: 56°F High: 44°F High: 47°F High: 59°F High: 64°F
Low: 24°F Low: 32°F Low: 27°F Low: 28°F Low: 41°F Low: 48°F  
Rain Rain Sunny Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny Rain
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Current Conditions at
SCOTT AFB - (KBLV)
54°
Cloudy
as of 1:55 AM CST
Rel. Humidity: 87%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: IFR
Wind Data
15 MPH
170° South
Cloud Level(s): Solid Overcast at 900ft
Current Conditions at
EAST ST LOUIS - (KCPS)
52°
Cloudy
as of 1:53 AM CST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.72 in.
Flight Rule: MVFR
Wind Data
12 MPH
Gust: 23 MPH
180° South
Cloud Level(s): Solid Overcast at 1100ft
Current Conditions at
SPARTA - (KSAR)
52°
Cloudy
as of 1:55 AM CST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.79 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 28 MPH
170° South
Cloud Level(s): Solid Overcast at 1100ft
Current Conditions at
ST LOUIS - (KSTL)
52°
Cloudy
as of 1:51 AM CST
Rel. Humidity: 87%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 29 MPH
170° South
Cloud Level(s): Solid Overcast at 1100ft
30% chance of rain Overnight Overnight... A 30 percent chance of rain, mainly between 4am and 5am. Cloudy, with a steady temperature around 52. South wind 16 to 18 mph, with gusts as high as 32 mph.

100% chance of rain Thursday Thursday... Rain, mainly before 2pm. Temperature rising to near 54 by 9am, then falling to around 44 during the remainder of the day. Breezy, with a south wind 13 to 20 mph becoming west in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%.

Mostly Clear on Thursday Night Thursday Night... Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Blustery, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph.

Sunny on Friday Friday... Sunny, with a high near 41. Northwest wind 7 to 11 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 32. South wind 8 to 13 mph, with gusts as high as 23 mph.

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

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

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 28.

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 41.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 59.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 48.

20% chance of rain Wednesday Wednesday... A 20 percent chance of rain. Mostly cloudy, with a high near 64.

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: 05:37 AM
Astro Sunset: 6:17 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.