Hourly Weather Forecast - Cahokia, IL

12 AM
28°F
10%
8mph
SSW
Cloudy
Humidity
55%
Feels like
20°F
Dew Point
14°F
1 AM
28°F
10%
8mph
SSW
Cloudy
Humidity
57%
Feels like
20°F
Dew Point
14°F
2 AM
27°F
10%
7mph
S
Cloudy
Humidity
60%
Feels like
19°F
Dew Point
15°F
3 AM
26°F
10%
6mph
S
Cloudy
Humidity
64%
Feels like
19°F
Dew Point
16°F
4 AM
26°F
30%
6mph
S
30 % Chance of Heavy Snow
Humidity
68%
Feels like
19°F
Dew Point
17°F
5 AM
26°F
10%
6mph
S
Cloudy
Humidity
73%
Feels like
19°F
Dew Point
18°F
6 AM
26°F
10%
6mph
S
Cloudy
Humidity
75%
Feels like
20°F
Dew Point
19°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak 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