Hourly Weather Forecast - Crystal Lake, IL

12 AM
27°F
10%
8mph
WNW
Partly Cloudy
Humidity
63%
Feels like
19°F
Dew Point
16°F
1 AM
26°F
10%
8mph
WNW
Partly Cloudy
Humidity
61%
Feels like
18°F
Dew Point
15°F
2 AM
25°F
10%
7mph
WNW
Partly Cloudy
Humidity
60%
Feels like
17°F
Dew Point
13°F
3 AM
23°F
0%
6mph
WNW
Partly Cloudy
Humidity
60%
Feels like
16°F
Dew Point
12°F
4 AM
22°F
0%
6mph
WNW
Partly Cloudy
Humidity
61%
Feels like
15°F
Dew Point
11°F
5 AM
21°F
0%
5mph
WNW
Partly Cloudy
Humidity
62%
Feels like
14°F
Dew Point
10°F
6 AM
19°F
0%
5mph
WNW
Partly Cloudy
Humidity
64%
Feels like
12°F
Dew Point
9°F
7 AM
19°F
10%
4mph
NW
Partly Cloudy
Humidity
64%
Feels like
12°F
Dew Point
8°F
7:18 AM
8 AM
19°F
10%
4mph
NW
Partly Cloudy
Humidity
62%
Feels like
13°F
Dew Point
8°F
9 AM
21°F
10%
4mph
NW
Mostly Cloudy
Humidity
57%
Feels like
15°F
Dew Point
8°F
10 AM
23°F
10%
4mph
NW
Mostly Cloudy
Humidity
52%
Feels like
18°F
Dew Point
8°F
11 AM
25°F
10%
4mph
NW
Mostly Cloudy
Humidity
48%
Feels like
20°F
Dew Point
8°F
12 PM
26°F
10%
3mph
NW
Mostly Cloudy
Humidity
44%
Feels like
22°F
Dew Point
8°F
1 PM
28°F
10%
3mph
NW
Mostly Cloudy
Humidity
42%
Feels like
24°F
Dew Point
8°F
2 PM
29°F
20%
3mph
NW
Cloudy
Humidity
41%
Feels like
25°F
Dew Point
8°F
3 PM
28°F
20%
3mph
NW
Cloudy
Humidity
42%
Feels like
28°F
Dew Point
8°F
4 PM
27°F
10%
3mph
NW
Cloudy
Humidity
45%
Feels like
27°F
Dew Point
9°F
4:24 PM
5 PM
26°F
10%
2mph
NW
Cloudy
Humidity
49%
Feels like
26°F
Dew Point
10°F
6 PM
25°F
10%
2mph
NW
Cloudy
Humidity
54%
Feels like
25°F
Dew Point
11°F
7 PM
25°F
10%
3mph
NW
Cloudy
Humidity
56%
Feels like
25°F
Dew Point
11°F
8 PM
25°F
10%
3mph
NW
Cloudy
Humidity
56%
Feels like
25°F
Dew Point
11°F
9 PM
24°F
10%
3mph
NW
Cloudy
Humidity
56%
Feels like
21°F
Dew Point
11°F
10 PM
24°F
10%
3mph
NW
Cloudy
Humidity
57%
Feels like
21°F
Dew Point
11°F
11 PM
25°F
10%
3mph
NNW
Cloudy
Humidity
58%
Feels like
25°F
Dew Point
12°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Wednesday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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