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Crystal Lake, IL

60°F
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Crystal Lake

Illinois

60°
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Crystal Lake, IL Weather
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12 AM

60°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 89%
Chevron down
Thunderstorms
alerts

Flash Flood Warning

8:12 PM Friday - 2:00 AM Saturday
alerts

Flood Warning

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

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindSW 15 mph

Air QualityFair

Wind Gusts20 mph

Humidity98%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility2 mi

Cloud Ceiling2000 ft

1 AM

60°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 89%
Chevron down
Thunderstorms
alerts

Flash Flood Warning

8:12 PM Friday - 2:00 AM Saturday
alerts

Flood Warning

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

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindWSW 14 mph

Air QualityFair

Wind Gusts17 mph

Humidity96%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Rain0.05 in

Visibility2 mi

Cloud Ceiling2000 ft

2 AM

57°
RealFeel® 51°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 25%
Chevron down
Cloudy
alerts

Flood Warning

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

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindW 14 mph

Air QualityFair

Wind Gusts16 mph

Humidity94%

Indoor Humidity64% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling2000 ft

3 AM

54°
RealFeel® 47°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Warning

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

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindW 15 mph

Air QualityFair

Wind Gusts17 mph

Humidity88%

Indoor Humidity54% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling2000 ft

4 AM

51°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Warning

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

Flood Watch

3:00 PM Friday - 5:00 AM Saturday

WindWNW 16 mph

Air QualityFair

Wind Gusts22 mph

Humidity83%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2000 ft

5 AM

48°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

WindWNW 16 mph

Air QualityFair

Wind Gusts22 mph

Humidity78%

Indoor Humidity39% (Ideal Humidity)

Dew Point42° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling3400 ft

6 AM

46°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 20%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

WindWNW 15 mph

Air QualityFair

Wind Gusts21 mph

Humidity71%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling4800 ft

7 AM

44°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 25%
Chevron down
Cloudy
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™34°

WindWNW 15 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts21 mph

Humidity68%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6200 ft

8 AM

43°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 42%
Chevron down
Showers
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™30°

WindWNW 17 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts25 mph

Humidity65%

Indoor Humidity41% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Rain0.01 in

Visibility10 mi

Cloud Ceiling7000 ft

9 AM

45°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 38%
Chevron down
Partly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™33°

WindWNW 18 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts28 mph

Humidity59%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover47%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

45°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 29%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™34°

WindWNW 18 mph

Air QualityFair

Max UV Index3.8 (Moderate)

Wind Gusts30 mph

Humidity57%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

47°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 17%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™36°

WindWNW 20 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts31 mph

Humidity52%

Indoor Humidity39% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

48°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 17%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™37°

WindWNW 20 mph

Air QualityFair

Max UV Index6.6 (High)

Wind Gusts32 mph

Humidity47%

Indoor Humidity38% (Dry)

Dew Point29° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

49°
RealFeel® 45°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 18%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™38°

WindWNW 21 mph

Air QualityFair

Max UV Index7.2 (High)

Wind Gusts33 mph

Humidity45%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

50°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™40°

WindWNW 20 mph

Air QualityFair

Max UV Index6.6 (High)

Wind Gusts35 mph

Humidity42%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

51°
RealFeel® 46°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™41°

WindWNW 20 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts38 mph

Humidity40%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

50°
RealFeel® 44°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™40°

WindWNW 20 mph

Air QualityFair

Max UV Index3.8 (Moderate)

Wind Gusts41 mph

Humidity40%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

50°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny
alerts

Flood Warning

1:00 PM Tuesday - 5:30 PM Saturday

RealFeel Shade™39°

WindWNW 20 mph

Air QualityFair

Max UV Index2.5 (Low)

Wind Gusts39 mph

Humidity40%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

49°
RealFeel® 40°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™39°

WindWNW 17 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts37 mph

Humidity41%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

47°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 14%
Chevron down
Mostly sunny

RealFeel Shade™38°

WindWNW 16 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts33 mph

Humidity43%

Indoor Humidity35% (Dry)

Dew Point25° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

45°
RealFeel® 37°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly clear

WindWNW 13 mph

Air QualityFair

Wind Gusts29 mph

Humidity45%

Indoor Humidity35% (Dry)

Dew Point25° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

43°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Clear

WindWNW 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity49%

Indoor Humidity34% (Dry)

Dew Point25° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

42°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Clear

WindWNW 8 mph

Air QualityFair

Wind Gusts12 mph

Humidity51%

Indoor Humidity34% (Dry)

Dew Point25° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

41°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Mostly clear

WindWNW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity53%

Indoor Humidity34% (Dry)

Dew Point25° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling30000 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 60° with a RealFeel® of 51°, thunderstorms with a 89% 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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