Hourly Weather Forecast - Grayslake, IL

12 PM
24°F
0%
5mph
WNW
Mostly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
16°F
1 PM
25°F
0%
4mph
W
Mostly Cloudy
Humidity
68%
Feels like
20°F
Dew Point
16°F
2 PM
26°F
0%
4mph
WNW
Mostly Cloudy
Humidity
67%
Feels like
21°F
Dew Point
16°F
3 PM
25°F
0%
3mph
WNW
Cloudy
Humidity
69%
Feels like
25°F
Dew Point
17°F
4 PM
24°F
0%
2mph
WNW
Cloudy
Humidity
71%
Feels like
24°F
Dew Point
17°F
4:19 PM
5 PM
24°F
0%
1mph
NW
Cloudy
Humidity
74%
Feels like
24°F
Dew Point
16°F
6 PM
23°F
0%
0mph
N
Cloudy
Humidity
76%
Feels like
23°F
Dew Point
16°F
7 PM
22°F
0%
0mph
NNE
Cloudy
Humidity
78%
Feels like
22°F
Dew Point
16°F
8 PM
21°F
0%
0mph
NNE
Mostly Cloudy
Humidity
79%
Feels like
21°F
Dew Point
15°F
9 PM
20°F
0%
1mph
N
Cloudy
Humidity
81%
Feels like
20°F
Dew Point
15°F
10 PM
19°F
0%
1mph
N
Mostly Cloudy
Humidity
82%
Feels like
19°F
Dew Point
14°F
11 PM
18°F
10%
1mph
N
Mostly Cloudy
Humidity
84%
Feels like
18°F
Dew Point
14°F

Snowfall forecast through Saturday A.M.

More Snow Across the Northern U.S. into the Midwest

The parade of snow will continue across the northern U.S. and Midwest through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Rains Finally Easing Across the Northwest

Friday's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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