Hourly Weather Forecast - Lemont, IL

12 AM
20°F
10%
5mph
SW
Partly Cloudy
Humidity
86%
Feels like
14°F
Dew Point
17°F
1 AM
20°F
10%
4mph
SW
Partly Cloudy
Humidity
88%
Feels like
14°F
Dew Point
17°F
2 AM
20°F
10%
4mph
SW
Mostly Cloudy
Humidity
88%
Feels like
14°F
Dew Point
17°F
3 AM
20°F
10%
4mph
SW
Cloudy
Humidity
87%
Feels like
13°F
Dew Point
17°F
4 AM
20°F
10%
4mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
14°F
Dew Point
17°F
5 AM
20°F
0%
4mph
SSW
Partly Cloudy
Humidity
89%
Feels like
14°F
Dew Point
17°F
6 AM
20°F
0%
4mph
SSW
Partly Cloudy
Humidity
89%
Feels like
15°F
Dew Point
17°F
7 AM
20°F
10%
3mph
SSW
Mostly Clear
Humidity
89%
Feels like
15°F
Dew Point
18°F
7:12 AM
8 AM
22°F
10%
3mph
SSW
Mostly Sunny
Humidity
87%
Feels like
17°F
Dew Point
19°F
9 AM
24°F
10%
3mph
S
Sunny
Humidity
85%
Feels like
19°F
Dew Point
20°F
10 AM
26°F
10%
4mph
SSW
Sunny
Humidity
82%
Feels like
22°F
Dew Point
22°F
11 AM
29°F
10%
4mph
SSW
Sunny
Humidity
79%
Feels like
24°F
Dew Point
23°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

Thursday's Weather Outlook

Thursday'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