• Today

    Dec 20

    35°Lo 28°

    Mostly cloudy

    Good for running
    • Precip
      8%
    • Hours of Precip
      0.5
    • Wind
      Gust
      5 mph
    more
  • Sun

    Dec 21

    39°Lo 32°

    Mostly cloudy with a flurry

    Fair for running
    • Precip
      43%
    • Hours of Precip
      1
    • Wind
      Gust
      16 mph
  • Mon

    Dec 22

    44°Lo 40°

    Mostly cloudy, afternoon rain

    Poor for running
    • Precip
      75%
    • Hours of Precip
      8
    • Wind
      Gust
      23 mph
    more
  • Tue

    Dec 23

    44°Lo 32°

    Cloudy with a few showers

    Poor for running
    • Precip
      60%
    • Hours of Precip
      4
    • Wind
      Gust
      15 mph
    more
  • Wed

    Dec 24

    37°Lo 26°

    Very windy; snow showers

    Poor for running
    • Precip
      78%
    • Hours of Precip
      5.5
    • Wind
      Gust
      47 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Cloudy
Flurries
Cloudy
Cloudy
Cloudy
Cloudy
Flurries
Cloudy
Temp (°F) 28° 29° 30° 32° 34° 36° 37° 38°
RealFeel® 25° 26° 25° 25° 27° 29° 30° 30°
Humidity 79% 78% 76% 74% 72% 68% 67% 65%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
0%
 
0%
 
3%
 
3%
 
3%
 
3%
 
3%
 
6%
Snow
 
37%
 
40%
 
31%
 
25%
 
28%
 
37%
 
40%
 
37%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 5 S 6 S 7 S 8 S 9 S 9 S 10 S 12 S
UV Index 0 0 0 0 0 1 1 1
Cloud Cover 95% 95% 90% 91% 92% 93% 94% 94%
Dew Point 22° 23° 24° 24° 26° 26° 27° 27°
Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F Middle Grid line 25 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 39° 33° N/A 35°
Low 32° 19° N/A 30°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:17 AM with 9:06 of sunlight, then sets at 4:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:31 AM with 10:00 of moolight, then sets at 4:31 PM

Arlington Heights Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 20, 2014; 4:16 AM ET

There's a chance for a white Christmas around Chicagoland as next week turns unsettled. 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.