Hourly Weather Forecast - Glen Carbon, IL

4 AM
33°F
0%
8mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
26°F
Dew Point
26°F
5 AM
33°F
0%
8mph
SSW
Mostly Cloudy
Humidity
76%
Feels like
27°F
Dew Point
27°F
6 AM
34°F
0%
8mph
SSW
Mostly Cloudy
Humidity
78%
Feels like
27°F
Dew Point
28°F
7 AM
35°F
0%
7mph
SSW
Partly Cloudy
Humidity
78%
Feels like
29°F
Dew Point
29°F
7:06 AM
8 AM
37°F
0%
7mph
SSW
Mostly Sunny
Humidity
76%
Feels like
32°F
Dew Point
31°F
9 AM
40°F
0%
7mph
SW
Mostly Sunny
Humidity
72%
Feels like
35°F
Dew Point
32°F
10 AM
43°F
0%
8mph
SW
Sunny
Humidity
68%
Feels like
38°F
Dew Point
33°F
11 AM
46°F
0%
8mph
SW
Mostly Sunny
Humidity
66%
Feels like
41°F
Dew Point
35°F
12 PM
48°F
0%
9mph
SW
Partly Cloudy
Humidity
63%
Feels like
44°F
Dew Point
36°F
1 PM
49°F
0%
9mph
SSW
Partly Cloudy
Humidity
62%
Feels like
46°F
Dew Point
37°F
2 PM
50°F
0%
9mph
SSW
Partly Cloudy
Humidity
61%
Feels like
50°F
Dew Point
37°F
3 PM
49°F
0%
9mph
S
Partly Cloudy
Humidity
63%
Feels like
46°F
Dew Point
37°F
4 PM
48°F
0%
10mph
S
Partly Cloudy
Humidity
66%
Feels like
43°F
Dew Point
37°F
4:38 PM
5 PM
46°F
0%
12mph
S
Partly Cloudy
Humidity
69%
Feels like
41°F
Dew Point
37°F
6 PM
45°F
0%
13mph
S
Mostly Cloudy
Humidity
69%
Feels like
39°F
Dew Point
36°F
7 PM
45°F
0%
13mph
SSW
Partly Cloudy
Humidity
69%
Feels like
39°F
Dew Point
36°F
8 PM
45°F
10%
13mph
SSW
Cloudy
Humidity
68%
Feels like
39°F
Dew Point
35°F
9 PM
46°F
10%
13mph
SSW
Cloudy
Humidity
68%
Feels like
40°F
Dew Point
35°F
10 PM
46°F
10%
12mph
SW
Cloudy
Humidity
66%
Feels like
41°F
Dew Point
35°F
11 PM
47°F
10%
12mph
SW
Mostly Cloudy
Humidity
66%
Feels like
41°F
Dew Point
36°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Traffic Cameras

Weather Cameras

Outdoor Sports Guide