Current Weather Forecast for Crystal Lake

IL 60039  |   3:15am

Weather Conditions

79°

Feels Like 84°

Clear

76° 93° EXTREME HEAT

EXTREME HEAT

0

UV Index

Moderate

Air Quality

SW 8 mph

Wind

0 in

rain

Tonight

Tue 6/30

75°

Lowest Temperature

2%

Clear skies. Low near 75F. Winds SW at 5 to 10 mph.

Tomorrow

Wed 7/1

93°

Highest Temperature

2%

A mainly sunny sky. Hot and humid. High 93F. Winds SW at 10 to 20 mph.

Tomorrow night

Wed 7/1

76°

Lowest Temperature

10%

Clear to partly cloudy. Low 76F. Winds SW at 10 to 20 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Crystal Lake

Hourly Weather Forecast & Temperature

4AM

2%

78°

Feels Like 83°

EXTREME HEAT

Clear

SW 8 mph

Wind

1013 mb

Pressure

80%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

5AM

2%

77°

Feels Like 77°

EXTREME HEAT

Clear

SW 7 mph

Wind

1013 mb

Pressure

81%

Humidity

0

UV Index

10mi

Visibility

2%

Cloud Cover

6AM

2%

77°

Feels Like 77°

EXTREME HEAT

Sunny

SW 7 mph

Wind

1014 mb

Pressure

81%

Humidity

0

UV Index

10mi

Visibility

7%

Cloud Cover

7AM

2%

78°

Feels Like 78°

EXTREME HEAT

Sunny

SW 8 mph

Wind

1014 mb

Pressure

79%

Humidity

0

UV Index

10mi

Visibility

18%

Cloud Cover

8AM

2%

80°

Feels Like 85°

EXTREME HEAT

Sunny

SW 9 mph

Wind

1014 mb

Pressure

76%

Humidity

1

UV Index

10mi

Visibility

9%

Cloud Cover

9AM

1%

83°

Feels Like 89°

EXTREME HEAT

Sunny

WSW 10 mph

Wind

1014 mb

Pressure

69%

Humidity

3

UV Index

10mi

Visibility

2%

Cloud Cover

10AM

1%

85°

Feels Like 92°

EXTREME HEAT

Sunny

WSW 11 mph

Wind

1014 mb

Pressure

64%

Humidity

5

UV Index

10mi

Visibility

2%

Cloud Cover

11AM

1%

87°

Feels Like 95°

EXTREME HEAT

Sunny

SW 11 mph

Wind

1014 mb

Pressure

61%

Humidity

7

UV Index

10mi

Visibility

0%

Cloud Cover

12PM

89°

Feels Like 97°

EXTREME HEAT

Sunny

SW 12 mph

Wind

1014 mb

Pressure

57%

Humidity

9

UV Index

10mi

Visibility

1%

Cloud Cover

1PM

90°

Feels Like 98°

EXTREME HEAT

Sunny

SW 12 mph

Wind

1014 mb

Pressure

55%

Humidity

9

UV Index

10mi

Visibility

6%

Cloud Cover

2PM

91°

Feels Like 99°

EXTREME HEAT

Sunny

SW 13 mph

Wind

1013 mb

Pressure

53%

Humidity

9

UV Index

10mi

Visibility

14%

Cloud Cover

3PM

91°

Feels Like 99°

EXTREME HEAT

Sunny

SW 14 mph

Wind

1013 mb

Pressure

51%

Humidity

7

UV Index

10mi

Visibility

6%

Cloud Cover

Tue 6/30

Tue

2%

76°

93°

Mainly clear. Lows overnight in the mid 70s.

85°

Feels Like

SW 8 mph

Wind

79%

Humidity

0

UV Index

5:19 AM

Sunrise

8:34 PM

Sunset

Wed 7/1

Wed

2%

75°

92°

EXTREME HEAT

Abundant sunshine. Highs in the low 90s and lows in the mid 70s.

99°

Feels Like

SW 16 mph

Wind

60%

Humidity

9

UV Index

5:20 AM

Sunrise

8:33 PM

Sunset

Thu 7/2

Thu

24%

74°

92°

EXTREME HEAT

Times of sun and clouds. Highs in the low 90s and lows in the low 70s.

99°

Feels Like

SW 11 mph

Wind

62%

Humidity

9

UV Index

5:21 AM

Sunrise

8:33 PM

Sunset

Fri 7/3

Fri

49%

72°

87°

Scattered thunderstorms possible. Highs in the upper 80s and lows in the low 70s.

93°

Feels Like

SW 12 mph

Wind

73%

Humidity

9

UV Index

5:21 AM

Sunrise

8:33 PM

Sunset

Sat 7/4

Sat

88%

68°

83°

Showers and thunderstorms. Highs in the low 80s and lows in the mid 60s.

88°

Feels Like

SSW 7 mph

Wind

78%

Humidity

7

UV Index

5:22 AM

Sunrise

8:33 PM

Sunset

Sun 7/5

Sun

46%

65°

80°

Afternoon showers. Highs in the low 80s and lows in the low 60s.

83°

Feels Like

NNE 9 mph

Wind

76%

Humidity

7

UV Index

5:22 AM

Sunrise

8:32 PM

Sunset

Mon 7/6

Mon

31%

63°

80°

Partly cloudy, chance of a thunderstorm. Highs in the low 80s and lows in the low 60s.

81°

Feels Like

NE 9 mph

Wind

68%

Humidity

8

UV Index

5:23 AM

Sunrise

8:32 PM

Sunset

Tue 7/7

Tue

15%

63°

84°

A few clouds. Highs in the mid 80s and lows in the mid 60s.

86°

Feels Like

NE 7 mph

Wind

63%

Humidity

9

UV Index

5:24 AM

Sunrise

8:32 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Looking for homes in this area?

• 7409 Chesterfield Rd, Crystal Lake, IL 60012
• 450 Berkshire Dr, Crystal Lake, IL 60014
• 1441 Loch Lomond Dr, Crystal Lake, IL 60014

Sponsored by Redfin. Housing data supplied by Redfin independent of FOX Weather.

Latest Stories from Illinois

Over 230M people to face brutal heat dome, life-threatening temperatures ahead of America's 250th birthday

Temperatures in the 90s are spreading across the Midwest and will reach the East Coast by Wednesday, when it will feel like 100 to 110 degrees for tens of millions of people as a life-threatening heat dome expands eastward ahead of America's 250th birthday.

Magnitude 3.5 earthquake jolts southern Illinois, felt by hundreds across multiple states

Residents across southern Illinois were rattled Monday morning after a magnitude 3.5 earthquake sent light shaking across four states.

4 dead as flash flooding slams Kentucky, triggering emergencies and evacuations

Thunderstorms and flash flooding are threatening the first half of the weekend for millions across parts of the Ohio Valley and East Coast. Those with outdoor plans could be dodging showers on both Saturday and Sunday ahead of a return to 90-degree weather by the middle of next week.

Illinois leads the country for most tornado reports so far in 2026 and it's only June

We're nearly halfway through the year, and it's been an active year for severe weather thus far, with more than 800 reported tornadoes across the U.S.

Load More Stories