Current Weather
3:53 PM
85°F
Mostly sunny
RealFeel® 91°
Hot
RealFeel Shade™ 84°
Very Warm
RealFeel®
91°
RealFeel Shade™
84°
Heat Index
85°
Max UV Index
4.4 (Moderate)
Wind
SW 3 mph
Wind Gusts
5 mph
Humidity
43%
Indoor Humidity
43% (Slightly Humid)
Dew Point
60° F
Pressure
↓ 30.06 in
Cloud Cover
21%
Visibility
11 mi
Cloud Ceiling
40000 ft
Day
7/30
85°Hi
RealFeel®
94°
Hot
RealFeel Shade™
84°
Very Warm
Hazy sun
Max UV Index9.0 (Very High)
AccuLumen Brightness Index™9 (Very Bright)
WindSW 5 mph
Wind Gusts12 mph
Probability of Precipitation1%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover10%
Night
7/30
64°Lo
RealFeel®
64°
Pleasant
Partly cloudy
WindSSW 5 mph
Wind Gusts6 mph
Probability of Precipitation2%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover26%
Sun & Moon
14 hrs 31 mins
Rise
5:44 AM
Set
8:15 PM
Waning Gibbous
Rise
8:59 PM
Set
7:43 AM
Temperature History
7/30High
Low
Forecast
85°
64°
Average
83°
64°
Last Year
80°
69°
Record
98°
1999
49°
1997
Current Weather Conditions in Crystal Lake
Crystal Lake, Illinois is currently Mostly sunny with a temperature of 85°. The current RealFeel® Temperature is 91° (Hot) based on observed conditions including 43% humidity, 21% cloud cover, a UV index of 4, and winds of 3 mph. In shade, the RealFeel Shade™ is 84°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Crystal Lake, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.