• Wed

    Jul 8

    77°Lo 63°

    Partly sunny and beautiful

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      84°
    • UV
      8 - Very High
    • Cloud
      Cover
      33%
    more
  • Thu

    Jul 9

    82°Lo 65°

    Mostly cloudy, afternoon rain

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      85°
    • UV
      5 - Moderate
    • Cloud
      Cover
      80%
    more
  • Fri

    Jul 10

    81°Lo 60°

    A p.m. t-storm possible

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      83°
    • UV
      5 - Moderate
    • Cloud
      Cover
      86%
    more
  • Sat

    Jul 11

    76°Lo 66°

    A t-storm in the afternoon

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      81°
    • UV
      4 - Moderate
    • Cloud
      Cover
      78%
    more
  • Sun

    Jul 12

    83°Lo 68°

    A t-storm possible; warmer

    Beneficial weather for sinus headaches
    • Hi
      RealFeel
      93°
    • UV
      8 - Very High
    • Cloud
      Cover
      13%
Next Previous
Hi 83° RealFeel® 93° Precipitation 30%

Day

N

E

S

W

  • ESE 6 mph
  • Gusts: 9 mph

Mostly sunny and warmer with a thunderstorm possible

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 60%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 68° RealFeel® 70° Precipitation 4%

Night

N

E

S

W

  • SE 6 mph
  • Gusts: 8 mph

Partly cloudy and humid

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • 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 12

more Historical Weather Data >
  Today Normal Record 7/12/2014
High 83° 82° N/A 75°
Low 68° 60° N/A 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:27 AM with 15:03 of sunlight, then sets at 8:30 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:43 AM with 14:41 of moolight, then sets at 5:24 PM

Crystal Lake Weather Report

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July 3, 2015; 4:34 AM ET

The holiday weekend will feature mostly sunny skies and seasonable weather for residents living in the Chicago area. more >

New Year, New You

Dec 24, 2012; 5:00 AM ET Start 2013 right with these tips on how to set realistic New Year's resolutions!