• Today

    Jul 12

    81°Lo 66°

    Thunderstorms, strong late

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sun

    Jul 13

    83°Lo 59°

    Clouds and sun with a t-storm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Mon

    Jul 14

    73°Lo 51°

    Thundershower

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Jul 15

    71°Lo 53°

    An afternoon shower

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Wed

    Jul 16

    74°Lo 54°

    An afternoon shower possible

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 81° RealFeel® 91° Precipitation 65%

Day

N

E

S

W

  • SSW 5 mph
  • Gusts: 9 mph

T-storms, strong late; cloudy spells; storms can bring downpours, large hail and damaging winds

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 91%
  • Precipitation: 0.42 in
  • Rain: 0.42 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 4 hrs
  • Hours of Rain: 4 hrs
Lo 66° RealFeel® 63° Precipitation 66%

Night

N

E

S

W

  • WSW 5 mph
  • Gusts: 10 mph

Showers and a heavier t-storm this evening; mostly cloudy with a shower or thunderstorm around late

  • Max UV Index: N/A
  • Thunderstorms: 45%
  • Precipitation: 0.44 in
  • Rain: 0.44 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs

Temperature History - Jul 12

more Historical Weather Data >
  Today Normal Record 7/12/2013
High 81° 82° N/A 80°
Low 66° 60° N/A 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:28 AM with 15:02 of sunlight, then sets at 8:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:29 PM with 10:32 of moolight, then sets at 7:01 AM

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Crystal Lake Weather Report

Stormy Weekend in Store for Chicago

July 12, 2014; 4:21 AM ET

Warm and humid air will be on the rise this weekend with an uptick in storms expected. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Sat. Snow Day Potential