• Early AM

    Jul 31

    Lo 63°

    Clear

    Beach & Pool Weather
    • UV
      5 - High
    • Cloud
      Cover
      9%
    • Precip
      6%
    more
  • Today

    Jul 31

    87°Lo 60°

    Mostly sunny

    Very Good at the beach or pool
    • UV
      7 - Very High
    • Cloud
      Cover
      12%
    • Precip
      25%
    more
  • Sat

    Aug 1

    84°Lo 65°

    Beautiful with sunshine

    Very Good at the beach or pool
    • UV
      5 - High
    • Cloud
      Cover
      70%
    • Precip
      59%
  • Sun

    Aug 2

    84°Lo 67°

    Partly sunny with a t-storm

    Very Good at the beach or pool
    • UV
      5 - High
    • Cloud
      Cover
      46%
    • Precip
      55%
    more
  • Mon

    Aug 3

    85°Lo 61°

    A thunderstorm in spots

    Good at the beach or pool
    • UV
      5 - High
    • Cloud
      Cover
      76%
    • Precip
      40%
    more
Next Previous
Hi 84° RealFeel® 86° Precipitation 12%

Day

N

E

S

W

  • WNW 10 mph
  • Gusts: 17 mph

Sunny to partly cloudy and beautiful

  • Max UV Index: 7 (High)
  • Thunderstorms: 9%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 65° RealFeel® 57° Precipitation 59%

Night

N

E

S

W

  • WSW 10 mph
  • Gusts: 17 mph

Increasing clouds with a shower or thunderstorm late

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.15 in
  • Rain: 0.15 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 84° 80° N/A 81°
Low 65° 60° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:27 of sunlight, then sets at 8:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:55 PM with 11:31 of moolight, then sets at 8:26 AM

Crystal Lake Weather Report

Chicago: Unsettled Weather to Make Early-Week Return

July 31, 2015; 12:46 AM ET

Temperatures will stay in the 80s, with the daytime high slowly working its way into the low 80s by Monday. more >

What's that Warning? Warnings at the Beach

Jul 25, 2012; 5:00 AM ET If you're headed to the beach, keep an eye out for any of these watches and warnings issued by the NWS.

Sat. Beach & Pool

Sat. UV Index

Sat. Wind Maps