• Wed

    Jul 15

    80°Lo 58°

    Some sun, then clouds

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      80°
    more
  • Thu

    Jul 16

    80°Lo 57°

    Sunshine

    Very Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      1%
    • Hi
      RealFeel
      87°
    more
  • Fri

    Jul 17

    80°Lo 58°

    Chance for a strong t-storm

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      30%
    • Hi
      RealFeel
      84°
    more
  • Sat

    Jul 18

    79°Lo 66°

    Chance for a strong t-storm

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      30%
    • Hi
      RealFeel
      80°
    more
  • Sun

    Jul 19

    81°Lo 66°

    Mostly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      15%
    • Hi
      RealFeel
      82°
Next Previous
Hi 81° RealFeel® 82° Precipitation 15%

Day

N

E

S

W

  • NNE 12 mph
  • Gusts: 25 mph

Mostly sunny

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 63° Precipitation 10%

Night

N

E

S

W

  • NNE 9 mph
  • Gusts: 23 mph

Clear to partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 10%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 19

more Historical Weather Data >
  Today Normal Record 7/19/2014
High 81° 81° N/A 77°
Low 66° 60° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:33 AM with 14:52 of sunlight, then sets at 8:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:11 AM with 13:05 of moolight, then sets at 10:16 PM

Crystal Lake Weather Report

Chicago: Monday Night Severe Storms to Precede Cooldown

July 5, 2015; 2:04 PM ET

A turn to warmer, more humid conditions will set the stage for severe weather to target the Chicago area Monday night. more >

Why Do Leaves Change Color?

Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?