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Dangerous heat wave to expand east early this week, affecting 170 million people. Details here Chevron right

Crystal Lake, IL

92°F
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Crystal Lake

Illinois

92°
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Today

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5 PM

93°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel Shade™91°

WindSW 16 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts35 mph

Humidity44%

Indoor Humidity44% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling33000 ft

6 PM

92°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel Shade™91°

WindSW 15 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts32 mph

Humidity46%

Indoor Humidity46% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

91°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel Shade™91°

WindSW 14 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts28 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

87°
RealFeel® 89°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 6%
Chevron down
Sunny
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel Shade™89°

WindSW 12 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts23 mph

Humidity57%

Indoor Humidity57% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover7%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

85°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 6%
Chevron down
Clear
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

WindSW 9 mph

Air QualityFair

Wind Gusts22 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover4%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

83°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 10%
Chevron down
Clear
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

WindSW 8 mph

Air QualityFair

Wind Gusts20 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 43%
Chevron down
Partly cloudy
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

WindSW 8 mph

Air QualityFair

Wind Gusts18 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover33%

Visibility10 mi

Cloud Ceiling30000 ft

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World North America United States Illinois Crystal Lake

Weather Near Crystal Lake:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
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