Hourly Weather Forecast - Crystal Lake, IL

4 AM
39°F
0%
1mph
SE
Mostly Cloudy
Humidity
85%
Feels like
39°F
Dew Point
35°F
5 AM
39°F
0%
1mph
SE
Mostly Cloudy
Humidity
87%
Feels like
39°F
Dew Point
35°F
6 AM
39°F
0%
2mph
SE
Mostly Cloudy
Humidity
88%
Feels like
39°F
Dew Point
35°F
7 AM
39°F
0%
2mph
SE
Mostly Cloudy
Humidity
88%
Feels like
39°F
Dew Point
36°F
7:21 AM
8 AM
40°F
0%
3mph
SE
Cloudy
Humidity
86%
Feels like
40°F
Dew Point
36°F
9 AM
41°F
0%
3mph
SE
Mostly Cloudy
Humidity
84%
Feels like
39°F
Dew Point
37°F
10 AM
42°F
0%
4mph
SSE
Mostly Cloudy
Humidity
82%
Feels like
40°F
Dew Point
37°F
11 AM
43°F
0%
5mph
SSE
Mostly Cloudy
Humidity
81%
Feels like
40°F
Dew Point
37°F
12 PM
44°F
0%
5mph
SSE
Mostly Cloudy
Humidity
79%
Feels like
41°F
Dew Point
38°F
1 PM
44°F
0%
6mph
SSE
Cloudy
Humidity
77%
Feels like
41°F
Dew Point
38°F
2 PM
45°F
0%
6mph
SE
Mostly Cloudy
Humidity
76%
Feels like
41°F
Dew Point
38°F
3 PM
44°F
0%
6mph
SE
Mostly Cloudy
Humidity
78%
Feels like
41°F
Dew Point
38°F
4 PM
43°F
0%
5mph
SE
Cloudy
Humidity
81%
Feels like
40°F
Dew Point
38°F
4:27 PM
5 PM
42°F
10%
5mph
SE
Mostly Cloudy
Humidity
85%
Feels like
39°F
Dew Point
38°F
6 PM
42°F
0%
6mph
SE
Cloudy
Humidity
86%
Feels like
39°F
Dew Point
38°F
7 PM
42°F
10%
6mph
SE
Cloudy
Humidity
87%
Feels like
39°F
Dew Point
39°F
8 PM
43°F
10%
6mph
SE
Cloudy
Humidity
87%
Feels like
39°F
Dew Point
39°F
9 PM
43°F
10%
6mph
SE
Cloudy
Humidity
87%
Feels like
40°F
Dew Point
40°F
10 PM
44°F
10%
5mph
SE
Cloudy
Humidity
87%
Feels like
41°F
Dew Point
40°F
11 PM
45°F
10%
4mph
SE
Cloudy
Humidity
86%
Feels like
43°F
Dew Point
41°F

Snow Forecast Through Monday

Powerful Winter Storm Taking Shape Across the Upper Midwest

A major winter storm is taking aim at the Upper Midwest and Great Lakes.

Today's Weather Outlook

Weekend Weather Outlook

Satellite image of Hurricane Melissa

2025 Year in Review: Powerful Hurricanes in the Atlantic

A frame from an automated video of a tornado and its mesocyclone that derailed multiple train cars near Enderlin, North Dakota and destroyed multiple homes on June 20, 2025. (ChrisWx via Wikimedia Commons)

2025 Year in Review: Extreme Weather - January through June

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Hurricane Erick at its peak intensity before making landfall on Guerrero, Mexico on June 19, 2025 (NOAA/Wikimedia Commons)

2025 Year in Review: Active Tropical Season for The Pacific

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide