Hourly Weather Forecast - Crystal Lake, IL

8 PM
31°F
0%
12mph
WNW
Clear
Humidity
48%
Feels like
21°F
Dew Point
13°F
9 PM
29°F
0%
13mph
WNW
Clear
Humidity
48%
Feels like
18°F
Dew Point
12°F
10 PM
27°F
0%
12mph
WNW
Clear
Humidity
50%
Feels like
16°F
Dew Point
11°F
11 PM
25°F
0%
12mph
WNW
Clear
Humidity
52%
Feels like
14°F
Dew Point
10°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide