• Wed

    Aug 17

    83°Lo 62°

    Mostly sunny and less humid

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      75°
    • Hi
      RealFeel
      86°
    • Wind
      Speed
      4 mph
    more
  • Thu

    Aug 18

    78°Lo 61°

    Mainly cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      70°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      5 mph
  • Fri

    Aug 19

    80°Lo 64°

    Sun and clouds

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      74°
    • Hi
      RealFeel
      85°
    • Wind
      Speed
      4 mph
    more
  • Sat

    Aug 20

    84°Lo 62°

    Cloudy

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      72°
    • Hi
      RealFeel
      82°
    • Wind
      Speed
      7 mph
    more
  • Sun

    Aug 21

    78°Lo 54°

    Mostly sunny

    Home Energy Efficiency Weather
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      81°
    • Wind
      Speed
      8 mph
    more
Next Previous
Hi 78° RealFeel® 79° Precipitation 25%

Day

N

E

S

W

  • SE 4 mph
  • Gusts: 5 mph

Mainly cloudy

  • Max UV Index: 4 (Moderate)
  • 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 61° RealFeel® 60° Precipitation 20%

Night

N

E

S

W

  • S 5 mph
  • Gusts: 7 mph

Patchy clouds

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

Temperature History - Aug 18

more Historical Weather Data >
  Today Normal Record 8/18/2015
High 78° 82° N/A 84°
Low 61° 63° N/A 69°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 13:44 of sunlight, then sets at 7:49 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:02 PM with 11:24 of moolight, then sets at 7:26 AM

Crystal Lake Weather Report

By the numbers: Recapping the week's stifling central US heat

July 23, 2016; 10:33 PM ET

Stifling heat has been baking the central United States but will finally ease across northern areas this weekend. more >