Hourly Weather Forecast - Granite City, IL

12 AM
37°F
20%
6mph
S
Partly Cloudy
Humidity
77%
Feels like
31°F
Dew Point
30°F
1 AM
37°F
20%
5mph
S
Partly Cloudy
Humidity
79%
Feels like
32°F
Dew Point
31°F
2 AM
37°F
20%
4mph
SSW
Partly Cloudy
Humidity
81%
Feels like
33°F
Dew Point
32°F
3 AM
37°F
20%
4mph
SW
Partly Cloudy
Humidity
82%
Feels like
34°F
Dew Point
32°F
4 AM
37°F
20%
4mph
WSW
Partly Cloudy
Humidity
83%
Feels like
34°F
Dew Point
32°F
5 AM
37°F
20%
4mph
WNW
Mostly Cloudy
Humidity
83%
Feels like
33°F
Dew Point
32°F
6 AM
37°F
20%
5mph
WNW
Cloudy
Humidity
82%
Feels like
33°F
Dew Point
32°F
7 AM
38°F
20%
6mph
NW
Cloudy
Humidity
82%
Feels like
33°F
Dew Point
33°F
7:09 AM
8 AM
39°F
20%
7mph
NW
Mostly Cloudy
Humidity
77%
Feels like
35°F
Dew Point
33°F
9 AM
41°F
20%
8mph
NW
Partly Cloudy
Humidity
74%
Feels like
36°F
Dew Point
33°F
10 AM
42°F
20%
8mph
NW
Partly Cloudy
Humidity
69%
Feels like
37°F
Dew Point
33°F
11 AM
43°F
20%
9mph
NW
Partly Cloudy
Humidity
65%
Feels like
37°F
Dew Point
32°F
12 PM
43°F
20%
9mph
NW
Partly Cloudy
Humidity
63%
Feels like
38°F
Dew Point
31°F
1 PM
42°F
20%
9mph
NW
Partly Cloudy
Humidity
63%
Feels like
37°F
Dew Point
30°F
2 PM
40°F
20%
9mph
NW
Partly Cloudy
Humidity
65%
Feels like
35°F
Dew Point
30°F
3 PM
38°F
20%
9mph
NW
Partly Cloudy
Humidity
69%
Feels like
32°F
Dew Point
29°F
4 PM
35°F
20%
9mph
NW
Partly Cloudy
Humidity
73%
Feels like
29°F
Dew Point
28°F
4:39 PM
5 PM
35°F
20%
8mph
NW
Partly Cloudy
Humidity
73%
Feels like
28°F
Dew Point
27°F
6 PM
35°F
0%
8mph
NW
Partly Cloudy
Humidity
69%
Feels like
28°F
Dew Point
26°F
7 PM
35°F
0%
7mph
NW
Partly Cloudy
Humidity
66%
Feels like
29°F
Dew Point
25°F
8 PM
33°F
0%
7mph
NW
Partly Cloudy
Humidity
69%
Feels like
27°F
Dew Point
24°F
9 PM
31°F
0%
6mph
NNW
Partly Cloudy
Humidity
70%
Feels like
25°F
Dew Point
23°F
10 PM
30°F
0%
6mph
NNW
Partly Cloudy
Humidity
72%
Feels like
23°F
Dew Point
22°F
11 PM
28°F
0%
6mph
NNW
Partly Cloudy
Humidity
72%
Feels like
22°F
Dew Point
20°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 Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday'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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Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide