Hourly Weather Forecast - Lake Forest, IL

12 AM
5°F
0%
1mph
WSW
Partly Cloudy
Humidity
80%
Feels like
5°F
Dew Point
0°F
1 AM
6°F
0%
1mph
WSW
Mostly Cloudy
Humidity
81%
Feels like
6°F
Dew Point
1°F
2 AM
6°F
0%
1mph
SW
Mostly Cloudy
Humidity
80%
Feels like
6°F
Dew Point
1°F
3 AM
6°F
10%
2mph
SW
Mostly Cloudy
Humidity
81%
Feels like
6°F
Dew Point
2°F
4 AM
7°F
10%
2mph
SW
Cloudy
Humidity
81%
Feels like
7°F
Dew Point
2°F
5 AM
8°F
20%
2mph
SSW
Cloudy
Humidity
80%
Feels like
8°F
Dew Point
4°F
6 AM
10°F
20%
2mph
SSW
Cloudy
Humidity
78%
Feels like
10°F
Dew Point
5°F
7 AM
12°F
20%
2mph
SSW
Mostly Cloudy
Humidity
75%
Feels like
12°F
Dew Point
5°F
7:13 AM
8 AM
14°F
20%
2mph
SSW
Partly Cloudy
Humidity
72%
Feels like
14°F
Dew Point
6°F
9 AM
16°F
20%
2mph
SSW
Mostly Sunny
Humidity
70%
Feels like
16°F
Dew Point
8°F
10 AM
17°F
20%
2mph
SSW
Mostly Sunny
Humidity
67%
Feels like
17°F
Dew Point
8°F
11 AM
19°F
10%
3mph
SSW
Sunny
Humidity
66%
Feels like
19°F
Dew Point
10°F
12 PM
20°F
10%
3mph
SW
Sunny
Humidity
65%
Feels like
20°F
Dew Point
10°F

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide