• Fri

    May 8

    79°Lo 58°

    Partly sunny, a t-storm; warm

    Poor for home energy
    • Avg
      RealFeel
      67°
    • Hi
      RealFeel
      81°
    • Wind
      Speed
      15 mph
    more
  • Sat

    May 9

    74°Lo 51°

    A couple of thunderstorms

    Poor for home energy
    • Avg
      RealFeel
      61°
    • Hi
      RealFeel
      76°
    • Wind
      Speed
      10 mph
    more
  • Sun

    May 10

    71°Lo 54°

    Some rain and a thunderstorm

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      69°
    • Wind
      Speed
      10 mph
    more
  • Mon

    May 11

    74°Lo 48°

    A thunderstorm in spots

    Poor for home energy
    • Avg
      RealFeel
      60°
    • Hi
      RealFeel
      76°
    • Wind
      Speed
      9 mph
  • Tue

    May 12

    70°Lo 45°

    Mostly sunny

    Poor for home energy
    • Avg
      RealFeel
      59°
    • Hi
      RealFeel
      74°
    • Wind
      Speed
      8 mph
    more
Next Previous
Hi 74° RealFeel® 76° Precipitation 40%

Day

N

E

S

W

  • WSW 9 mph
  • Gusts: 29 mph

A shower or thunderstorm in spots in the morning; otherwise, variable cloudiness

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 48° RealFeel® 44° Precipitation 0%

Night

N

E

S

W

  • W 8 mph
  • Gusts: 21 mph

Partly cloudy

  • 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 - May 11

more Historical Weather Data >
  Today Normal Record 5/11/2014
High 74° 66° N/A 79°
Low 48° 43° N/A 45°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:37 AM with 14:26 of sunlight, then sets at 8:03 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:39 AM with 11:02 of moolight, then sets at 12:41 PM

Crystal Lake Weather Report

Chicago: Weekend Warmth to Last Into Early Week

May 3, 2015; 1:27 AM ET

The month of May has opened the door for warm air to flow into the Chicago area following a cool end to April. 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.