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Gartside, Illinois Weather Forecast
Gartside, Illinois Weather
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Weather Forecast for Gartside, Illinois : St. Clair County
Issued: 12:56 am CST Dec 21, 2025 Latitude: 38.5439395 Longitude: -90.0362173 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Cloudy on Overnight Mostly Sunny on Sunday Partly Sunny on Monday Mostly Sunny on Tuesday Cloudy on Wednesday Sunny on Christmas Day Mostly Cloudy on Friday Mostly Cloudy on Saturday
Low: 27°F High: 44°F High: 53°F High: 63°F High: 67°F High: 74°F High: 67°F High: 57°F
Low: 30°F Low: 47°F Low: 44°F Low: 58°F Low: 54°F Low: 45°F  
Cloudy Mostly Sunny Partly Sunny Mostly Sunny Cloudy Sunny Mostly Cloudy Mostly Cloudy
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Current Conditions at
EAST ST LOUIS - (KCPS)
28°
Clear
as of 12:53 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
SCOTT AFB - (KBLV)
30°
Clear
as of 12:55 AM CST
Rel. Humidity: 63%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
5 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
28°
Mostly Cloudy
as of 12:51 AM CST
Rel. Humidity: 68%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
3 MPH
260° West
Cloud Level(s): Few at 15000ft, Broken at 25000ft
Current Conditions at
SPARTA - (KSAR)
34°
Clear
as of 1:15 AM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.31 in.
Flight Rule: VFR
Wind Data
3 MPH
340° North
Cloud Level(s): Clear
Cloudy on Overnight Overnight... Partly cloudy, with a low around 27. Calm wind becoming north around 5 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. Light and variable wind becoming east 5 to 7 mph in the morning.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 30. Southeast wind 6 to 8 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 53. South wind 7 to 10 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 47. South wind 6 to 9 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 63.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 44.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 67.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 58.

Sunny on Christmas Day Christmas Day... Sunny, with a high near 74.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 54.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 67.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 45.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 57.

Current Radar Image


Sun Almanac for Gartside, Illinois
Sunrise: 07:14 AM
Sunset: 4:43 PM
Civil Sunrise:06:45 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:46 PM
Astro Sunrise: 05:39 AM
Astro Sunset: 6:18 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.