National Weather Service forecast
Glen Carbon, Illinois Weather
Glen Carbon 7-Day Forecast
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Overnight55°FChance Light Rain41% chance of precipitation
A chance of rain before 3am, then a slight chance of drizzle. Mostly cloudy, with a low around 55. Southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
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Wednesday62°FSlight Chance Drizzle then Mostly Cloudy12% chance of precipitation
A slight chance of drizzle before 7am. Mostly cloudy, with a high near 62. West wind 8 to 14 mph.
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Wednesday Night46°FPartly Cloudy
Partly cloudy, with a low around 46. West wind around 7 mph.
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Thursday64°FSunny1% chance of precipitation
Sunny, with a high near 64. West wind 6 to 12 mph.
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Thursday Night46°FMostly Cloudy7% chance of precipitation
Mostly cloudy, with a low around 46. Northwest wind around 6 mph.
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Friday58°FPartly Sunny6% chance of precipitation
Partly sunny. High near 58, with temperatures falling to around 54 in the afternoon.
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Friday Night40°FPartly Cloudy1% chance of precipitation
Partly cloudy, with a low around 40.
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Saturday56°FMostly Sunny
Mostly sunny, with a high near 56.
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Saturday Night37°FPartly Cloudy
Partly cloudy, with a low around 37.
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Sunday62°FSunny7% chance of precipitation
Sunny, with a high near 62.
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Sunday Night38°FMostly Clear5% chance of precipitation
Mostly clear, with a low around 38.
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Monday66°FSunny2% chance of precipitation
Sunny, with a high near 66.
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Monday Night42°FMostly Clear1% chance of precipitation
Mostly clear, with a low around 42.
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Tuesday68°FSunny
Sunny, with a high near 68.
Issued by the National Weather Service (LSX office), updated .
Glen Carbon Hourly Forecast
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Glen Carbon Weather Radar
Open the full radar for Glen CarbonAbout Glen Carbon
- Population (2020 Census)
- 13,842
- Coordinates
- 38.758, -89.983
- Elevation
- 548 ft
- NWS forecast office
- LSX
- Time zone
- America/Chicago
- Sunrise today
- 6:30 AM CST
- Sunset today
- 4:56 PM CST
- Daylight today
- 10 h 27 min
Glen Carbon Weather Questions
What is the weather forecast for Glen Carbon, Illinois?
Overnight: A chance of rain before 3am, then a slight chance of drizzle. Mostly cloudy, with a low around 55. Southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Wednesday: A slight chance of drizzle before 7am. Mostly cloudy, with a high near 62. West wind 8 to 14 mph.
Will it rain or snow in Glen Carbon this week?
The best chance of precipitation is Overnight at 41%. Periods with a 30% chance or more: Overnight (41%).
How warm and how cold will it get in Glen Carbon this week?
The warmest day is Tuesday, with a high near 68°F. The coldest night is Saturday Night, with a low near 37°F.
What time are sunrise and sunset in Glen Carbon today?
Sunrise is at 6:30 AM CST and sunset is at 4:56 PM CST, for 10 h 27 min of daylight.
Weather near Glen Carbon
- Edwardsville 2 mi
- Maryville 2 mi
- Pontoon Beach 5 mi
- Mitchell 5 mi
- South Roxana 5 mi
- Roxana 6 mi
- Troy 6 mi
- Collinsville 6 mi