Hourly Weather Forecast - Crystal Lake, IL

10 AM
-1°F
0%
7mph
NW
Very Cold
Humidity
69%
Feels like
-14°F
Dew Point
-9°F
11 AM
1°F
0%
6mph
NW
Sunny
Humidity
67%
Feels like
-11°F
Dew Point
-7°F
12 PM
3°F
0%
6mph
WNW
Sunny
Humidity
65%
Feels like
-8°F
Dew Point
-6°F
1 PM
4°F
0%
5mph
WNW
Sunny
Humidity
65%
Feels like
-5°F
Dew Point
-5°F
2 PM
6°F
10%
4mph
WNW
Mostly Sunny
Humidity
65%
Feels like
-3°F
Dew Point
-4°F
3 PM
6°F
10%
4mph
WNW
Mostly Sunny
Humidity
66%
Feels like
-2°F
Dew Point
-3°F
4 PM
6°F
10%
4mph
W
Mostly Sunny
Humidity
68%
Feels like
-2°F
Dew Point
-3°F
4:21 PM
5 PM
5°F
10%
3mph
W
Partly Cloudy
Humidity
70%
Feels like
-2°F
Dew Point
-3°F
6 PM
5°F
10%
3mph
W
Mostly Cloudy
Humidity
72%
Feels like
-2°F
Dew Point
-2°F
7 PM
5°F
10%
4mph
WSW
Partly Cloudy
Humidity
73%
Feels like
-3°F
Dew Point
-2°F
8 PM
4°F
10%
4mph
WSW
Partly Cloudy
Humidity
73%
Feels like
-3°F
Dew Point
-2°F
9 PM
4°F
10%
4mph
WSW
Partly Cloudy
Humidity
74%
Feels like
-4°F
Dew Point
-2°F
10 PM
4°F
10%
4mph
SW
Partly Cloudy
Humidity
75%
Feels like
-5°F
Dew Point
-2°F
11 PM
4°F
10%
5mph
SW
Partly Cloudy
Humidity
75%
Feels like
-7°F
Dew Point
-2°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

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

Cold Air Damming - Cause And Effects

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide