• Tonight

    Apr 30

    Lo 42°

    Mostly cloudy, a little rain

    Running Weather
    • Precip
      83%
    • Hours of Precip
      11
    • Wind
      Gust
      28 mph
    more
  • Sun

    May 1

    50°Lo 40°

    Mostly cloudy, a little rain

    Poor for running
    • Precip
      54%
    • Hours of Precip
      1.5
    • Wind
      Gust
      15 mph
  • Mon

    May 2

    58°Lo 39°

    Partly sunny and warmer

    Excellent for running
    • Precip
      7%
    • Hours of Precip
      0
    • Wind
      Gust
      9 mph
    more
  • Tue

    May 3

    70°Lo 46°

    Breezy with partial sunshine

    Excellent for running
    • Precip
      11%
    • Hours of Precip
      1.5
    • Wind
      Gust
      36 mph
    more
  • Wed

    May 4

    55°Lo 40°

    Cooler with a shower or two

    Good for running
    • Precip
      55%
    • Hours of Precip
      1.5
    • Wind
      Gust
      30 mph
    more
Next Previous
Hi 50° RealFeel® 46° Precipitation 54%

Day

N

E

S

W

  • NNE 12 mph
  • Gusts: 15 mph

Mostly cloudy and cool with a bit of rain

  • Max UV Index: 2 (Low)
  • Thunderstorms: 14%
  • Precipitation: 0.03 in
  • Rain: 0.03 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 40° RealFeel® 35° Precipitation 25%

Night

N

E

S

W

  • NNE 8 mph
  • Gusts: 14 mph

Mostly cloudy and chilly

  • Max UV Index: N/A
  • Thunderstorms: 2%
  • 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 1

more Historical Weather Data >
  Today Normal Record 5/1/2015
High 50° 62° N/A 60°
Low 40° 43° N/A 34°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:07 of sunlight, then sets at 7:53 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:44 AM with 11:09 of moolight, then sets at 1:53 PM

Grayslake Weather Report

Chicago: Warmup to follow cool, damp weekend

April 30, 2016; 7:26 PM ET

Following a cool and rainy weekend, warmer conditions will arrive in the Chicago area early next week. more >

Avoid the Winter Workout Blues

Dec 26, 2012; 5:00 AM ET When it's snowing or cold, most of us want nothing more than to keep warm on the couch. But Violeta Yas has some tips to help you sneak in mini workouts at the office, regardless of the weather.