• Early AM

    Aug 21

    Lo 68°

    A shower or thunderstorm

    Frizz Forecast Weather
    • Wind
      Gust
      12 mph
    • Precip
      55%
    • Hours of Precip
      0.5
    more
  • Today

    Aug 21

    85°Lo 72°

    A couple of thunderstorms

    Frizz Forecast Weather
    • Wind
      Gust
      14 mph
    • Precip
      59%
    • Hours of Precip
      3.5
  • Fri

    Aug 22

    90°Lo 71°

    Some sun with a thunderstorm

    Frizz Forecast Weather
    • Wind
      Gust
      9 mph
    • Precip
      65%
    • Hours of Precip
      3
    more
  • Sat

    Aug 23

    87°Lo 69°

    A p.m. t-storm possible

    Frizz Forecast Weather
    • Wind
      Gust
      9 mph
    • Precip
      30%
    • Hours of Precip
      1
    more
  • Sun

    Aug 24

    90°Lo 69°

    Very warm with clouds and sun

    Frizz Forecast Weather
    • Wind
      Gust
      13 mph
    • Precip
      22%
    • Hours of Precip
      0
    more
Next Previous
A couple of showers and thunderstorms 75° Lo 72° RealFeel® 76° / 74°

N

E

S

W

  • Precipitation: 55%
  • Rain: 0.1 in
  • Snow: 0 in
  • Humidity: 90%
  • Cloud Cover: 45%
  • Dew Point: 70° F
  • Visibility: 8 mi
5 mph

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 85° 79° N/A 87°
Low 72° 58° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 13:38 of sunlight, then sets at 7:45 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:35 AM with 14:40 of moolight, then sets at 5:15 PM

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Crystal Lake Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 21, 2014; 1:30 AM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Thu. Hair Frizz

Thu. Wind Maps

Thu. UV Index