Hourly Weather Forecast - Lake Forest, IL

12 AM
40°F
10%
2mph
NNE
Partly Cloudy
Humidity
70%
Feels like
40°F
Dew Point
31°F
1 AM
38°F
10%
2mph
NNE
Partly Cloudy
Humidity
72%
Feels like
38°F
Dew Point
30°F
2 AM
37°F
10%
2mph
NNE
Partly Cloudy
Humidity
76%
Feels like
37°F
Dew Point
30°F
3 AM
35°F
10%
2mph
NNE
Mostly Cloudy
Humidity
80%
Feels like
35°F
Dew Point
29°F
4 AM
34°F
10%
2mph
NNE
Cloudy
Humidity
82%
Feels like
34°F
Dew Point
29°F
5 AM
33°F
0%
1mph
NNE
Cloudy
Humidity
83%
Feels like
33°F
Dew Point
29°F
6 AM
33°F
0%
1mph
NNE
Cloudy
Humidity
84%
Feels like
33°F
Dew Point
29°F
6:46 AM
7 AM
34°F
0%
2mph
NNE
Cloudy
Humidity
82%
Feels like
34°F
Dew Point
29°F
8 AM
35°F
0%
2mph
NE
Cloudy
Humidity
78%
Feels like
35°F
Dew Point
29°F
9 AM
37°F
0%
2mph
NE
Cloudy
Humidity
73%
Feels like
37°F
Dew Point
29°F
10 AM
38°F
0%
3mph
ENE
Cloudy
Humidity
69%
Feels like
38°F
Dew Point
29°F
11 AM
40°F
0%
3mph
ENE
Mostly Cloudy
Humidity
67%
Feels like
38°F
Dew Point
29°F
12 PM
40°F
0%
3mph
ENE
Mostly Cloudy
Humidity
64%
Feels like
38°F
Dew Point
29°F
1 PM
41°F
10%
4mph
E
Mostly Cloudy
Humidity
63%
Feels like
39°F
Dew Point
29°F
2 PM
41°F
10%
4mph
E
Mostly Cloudy
Humidity
62%
Feels like
39°F
Dew Point
29°F
3 PM
41°F
10%
3mph
E
Mostly Cloudy
Humidity
62%
Feels like
39°F
Dew Point
29°F
4 PM
40°F
20%
3mph
E
Mostly Cloudy
Humidity
64%
Feels like
40°F
Dew Point
29°F
5 PM
40°F
20%
3mph
ESE
Mostly Cloudy
Humidity
64%
Feels like
40°F
Dew Point
29°F
6 PM
38°F
20%
3mph
ESE
Mostly Cloudy
Humidity
68%
Feels like
38°F
Dew Point
29°F
7 PM
38°F
20%
2mph
ESE
Mostly Cloudy
Humidity
67%
Feels like
38°F
Dew Point
28°F
7:09 PM
8 PM
38°F
10%
3mph
SE
Mostly Cloudy
Humidity
68%
Feels like
38°F
Dew Point
29°F
9 PM
40°F
10%
3mph
SE
Mostly Cloudy
Humidity
65%
Feels like
40°F
Dew Point
29°F
10 PM
40°F
10%
3mph
SE
Partly Cloudy
Humidity
67%
Feels like
40°F
Dew Point
30°F
11 PM
41°F
30%
2mph
SSE
30% Chance Rain Showers
Humidity
67%
Feels like
41°F
Dew Point
31°F

Saturday's High Temperature Outlook

Scorching Heat Continues Across the Southwest

Dozens of record high temperatures will be challenged or shattered across the Southwest today.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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