Hourly Weather Forecast - Lake Forest, IL

12 PM
33°F
0%
4mph
WSW
Cloudy
Humidity
82%
Feels like
29°F
Dew Point
28°F
1 PM
33°F
0%
4mph
WSW
Cloudy
Humidity
82%
Feels like
30°F
Dew Point
29°F
2 PM
34°F
10%
3mph
WSW
Cloudy
Humidity
84%
Feels like
34°F
Dew Point
29°F
3 PM
34°F
10%
2mph
SW
Cloudy
Humidity
87%
Feels like
34°F
Dew Point
30°F
4 PM
34°F
20%
2mph
SW
Cloudy
Humidity
89%
Feels like
34°F
Dew Point
31°F
4:19 PM
5 PM
34°F
30%
2mph
SSW
30% Chance of Light Rain
Humidity
90%
Feels like
34°F
Dew Point
31°F
6 PM
34°F
50%
2mph
S
50% Chance of Light Rain
Humidity
90%
Feels like
34°F
Dew Point
31°F
7 PM
35°F
60%
3mph
S
60% Chance of Light Rain
Humidity
90%
Feels like
32°F
Dew Point
32°F
8 PM
35°F
80%
4mph
S
80% Chance of Light Rain
Humidity
89%
Feels like
32°F
Dew Point
32°F
9 PM
36°F
80%
5mph
S
80% Chance of Light Rain
Humidity
89%
Feels like
32°F
Dew Point
33°F
10 PM
37°F
60%
6mph
SSW
60% Chance of Light Rain
Humidity
88%
Feels like
32°F
Dew Point
33°F
11 PM
37°F
50%
6mph
SW
50% Chance of Rain
Humidity
87%
Feels like
32°F
Dew Point
34°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