Current Weather
4:03 PM
82°F
Sunny
RealFeel® 86°
Very Warm
RealFeel Shade™ 78°
Pleasant
RealFeel®
86°
RealFeel Shade™
78°
Heat Index
81°
Max UV Index
4.6 (Moderate)
Wind
SSW 4 mph
Wind Gusts
8 mph
Humidity
39%
Indoor Humidity
39% (Ideal Humidity)
Dew Point
54° F
Pressure
↓ 30.08 in
Cloud Cover
10%
Visibility
12 mi
Cloud Ceiling
40000 ft
Day
5/25
84°Hi
RealFeel®
89°
Very Warm
RealFeel Shade™
81°
Pleasant
Sunny to partly cloudy and very warm; a shower in the area this afternoon
Max UV Index10.0 (Very High)
AccuLumen Brightness Index™9 (Very Bright)
WindSSW 8 mph
Wind Gusts23 mph
Probability of Precipitation49%
Probability of Thunderstorms10%
Precipitation0.00 in
Hours of Precipitation0.5
Hours of Rain0.5
Cloud Cover17%
Night
5/25
58°Lo
RealFeel®
57°
Cool
Partly cloudy
WindSSW 7 mph
Wind Gusts15 mph
Probability of Precipitation0%
Probability of Thunderstorms0%
Precipitation0.00 in
Cloud Cover26%
Sun & Moon
14 hrs 53 mins
Rise
5:24 AM
Set
8:17 PM
Waxing Gibbous
Rise
2:59 PM
Set
2:43 AM
Temperature History
5/25High
Low
Forecast
84°
58°
Average
73°
51°
Last Year
68°
45°
Record
89°
2018
39°
2002
Current Weather Conditions in Crystal Lake
Crystal Lake, Illinois is currently Sunny with a temperature of 82°. The current RealFeel® Temperature is 86° (Very Warm) based on observed conditions including 39% humidity, 10% cloud cover, a UV index of 5, and winds of 4 mph. In shade, the RealFeel Shade™ is 78°. 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.