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Crystal Lake, IL

79°F
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Crystal Lake

Illinois

79°
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Crystal Lake, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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5 PM

80°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Tornado Watch

12:40 PM Friday - 8:00 PM Friday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

RealFeel Shade™75°

WindS 20 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts28 mph

Humidity51%

Indoor Humidity51% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling26200 ft

6 PM

77°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Tornado Watch

12:40 PM Friday - 8:00 PM Friday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

RealFeel Shade™73°

WindS 21 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts24 mph

Humidity58%

Indoor Humidity58% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling22400 ft

7 PM

75°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 11%
Chevron down
Intermittent clouds
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Tornado Watch

12:40 PM Friday - 8:00 PM Friday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

RealFeel Shade™71°

WindS 21 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts24 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling18700 ft

8 PM

71°
RealFeel® 67°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 22%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindS 18 mph

Air QualityFair

Wind Gusts23 mph

Humidity69%

Indoor Humidity69% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling14800 ft

9 PM

68°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 22%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindSSW 18 mph

Air QualityFair

Wind Gusts25 mph

Humidity75%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling10900 ft

10 PM

65°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 27%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindSSW 17 mph

Air QualityFair

Wind Gusts25 mph

Humidity81%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7100 ft

11 PM

64°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 49%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 AM Saturday
alerts

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindSW 17 mph

Air QualityFair

Wind Gusts22 mph

Humidity85%

Indoor Humidity75% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling5400 ft

Hourly Weather Forecast for Crystal Lake

AccuWeather's hourly forecast for Crystal Lake provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 80° with a RealFeel® of 77°, intermittent clouds with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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Weather Near Crystal Lake:

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