Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Boston, Philly hit 100, NYC breaks record from 1888 amid heat wave. Get the latest Chevron right
Find out when the heat will end where you live Chevron right

Glen Carbon, IL

90°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Glen Carbon

Illinois

90°
No results found.
Try searching for a city, zip code or point of interest.
settings
Glen Carbon, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Newsletters

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 Daily Radar MinuteCast Monthly Air Quality Health & Activities

5 PM

87°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 40%
Chevron down
Mostly cloudy w/ t-storms
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel Shade™90°

WindS 8 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts14 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling10000 ft

6 PM

85°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 37%
Chevron down
Mostly sunny
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel Shade™91°

WindWSW 7 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts10 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

85°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 23%
Chevron down
Mostly sunny
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel Shade™90°

WindW 7 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts8 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

84°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 1%
Chevron down
Mostly sunny
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

RealFeel Shade™91°

WindSW 7 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts12 mph

Humidity72%

Indoor Humidity72% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

82°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 1%
Chevron down
Mostly clear
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

WindSSW 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity77%

Indoor Humidity77% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

80°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 1%
Chevron down
Clear
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

WindS 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover2%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

79°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 1%
Chevron down
Clear
alerts

Heat Advisory

9:00 PM Monday - 9:00 PM Thursday

WindS 6 mph

Air QualityFair

Wind Gusts10 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Friday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Heat dome to break down as downpours and thunderstorms erupt

2 hours ago

Weather News

Baby rescued from 110-degree car in California

6 hours ago

Weather Forecasts

Surge in downpours, thunderstorms coming to southeast US

3 hours ago

Weather News

Lifeguard impaled by beach umbrella at Asbury Park

2 hours ago

Astronomy

Four astronauts launch as NASA grapples with leak issue

2 hours ago

 More Stories

Featured Stories

Weather News

Rare event breathes life back into Australia’s arid outback

4 hours ago

Weather News

Fossil reveals ‘Last of Us’-type fungus likely lived with dinosaurs

5 hours ago

Climate

Your AI prompts could have a hidden environmental cost

2 days ago

Weather News

The greatest hot-weather drink you’ve probably never heard of

2 days ago

Weather News

World’s most liveable city for 2025 revealed

1 day ago
World North America United States Illinois Glen Carbon

Weather Near Glen Carbon:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information

...

...

...