• Today

    May 6

    74°Lo 57°

    Areas of morning fog

    Poor for home energy
    • Avg
      RealFeel
      66°
    • Hi
      RealFeel
      77°
    • Wind
      Speed
      7 mph
    more
  • Thu

    May 7

    80°Lo 63°

    Partly sunny and warm

    Poor for home energy
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      15 mph
  • Fri

    May 8

    77°Lo 60°

    A shower and t-storm around

    Poor for home energy
    • Avg
      RealFeel
      69°
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      14 mph
    more
  • Sat

    May 9

    69°Lo 49°

    A shower and t-storm around

    Poor for home energy
    • Avg
      RealFeel
      56°
    • Hi
      RealFeel
      71°
    • Wind
      Speed
      12 mph
    more
  • Sun

    May 10

    66°Lo 50°

    A shower and t-storm around

    Poor for home energy
    • Avg
      RealFeel
      54°
    • Hi
      RealFeel
      65°
    • Wind
      Speed
      12 mph
    more
Next Previous
Hi 80° RealFeel® 79° Precipitation 16%

Day

N

E

S

W

  • S 15 mph
  • Gusts: 24 mph

Partly sunny, breezy and very warm

  • Max UV Index: 7 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 63° RealFeel® 59° Precipitation 55%

Night

N

E

S

W

  • S 12 mph
  • Gusts: 17 mph

Mostly cloudy and warm with a shower or thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - May 7

more Historical Weather Data >
  Today Normal Record 5/7/2014
High 80° 64° N/A 60°
Low 63° 42° N/A 49°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:41 AM with 14:18 of sunlight, then sets at 7:59 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 11:25 PM with 10:03 of moolight, then sets at 9:28 AM

Crystal Lake Weather Report

Chicago: Warm, Stormy Weather to Span the Week

May 6, 2015; 12:11 AM ET

Showers and thunderstorms are in the offing for the Chicago area through the end of the week, in addition to doses of above-average warmth. more >

Energy Efficient Lightbulbs and S.A.D

Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.

Thu. Home Energy Efficiency

Thu. Degree Days

Thu. UV Index