Hourly Weather Forecast - Collinsville, IL

8 PM
44°F
0%
13mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
38°F
Dew Point
35°F
9 PM
44°F
0%
13mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
38°F
Dew Point
34°F
10 PM
44°F
0%
13mph
SW
Mostly Cloudy
Humidity
68%
Feels like
38°F
Dew Point
34°F
11 PM
45°F
10%
12mph
SW
Mostly Cloudy
Humidity
67%
Feels like
39°F
Dew Point
35°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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide