• Tonight

    Apr 18

    Lo 33°

    Mainly clear

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sat

    Apr 19

    64°Lo 42°

    Mostly sunny; breezy, warmer

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Apr 20

    71°Lo 51°

    Partly sunny

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Mon

    Apr 21

    70°Lo 47°

    A couple of thunderstorms

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Apr 22

    58°Lo 37°

    Cooler

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 71° RealFeel® 72° Precipitation 19%

Day

N

E

S

W

  • S 9 mph
  • Gusts: 14 mph

Partly sunny

  • Max UV Index: 6 (High)
  • Thunderstorms: 5%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 51° RealFeel® 46° Precipitation 25%

Night

N

E

S

W

  • SSW 7 mph
  • Gusts: 11 mph

Becoming cloudy

  • Max UV Index: N/A
  • Thunderstorms: 16%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Apr 20

more Historical Weather Data >
  Today Normal Record 4/20/2013
High 71° 61° 87° (1985) 47°
Low 51° 40° 24° (1897) 31°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:04 AM with 13:35 of sunlight, then sets at 7:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:20 AM with 10:01 of moolight, then sets at 10:21 AM

Top Story

Arlington Heights Weather Report

Chicago: Weekend Warmth on the Way

April 18, 2014; 4:14 AM ET

Despite a chilly Friday, seasonal warmth will return to the city right in time for the holiday weekend. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

Sun. Snow Day Potential