• Early AM

    Dec 20

    Lo 23°

    Cloudy

    Snow Days Weather
    • Snow
      5%
    • Ice
      0%
    • Snow
      0 in
    more
  • Today

    Dec 20

    35°Lo 27°

    Mostly cloudy

    Very Unlikely for a snow day
    • Snow
      8%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    Dec 21

    41°Lo 31°

    Mostly cloudy with a flurry

    Very Unlikely for a snow day
    • Snow
      44%
    • Ice
      0%
    • Snow
      0.03 in
  • Mon

    Dec 22

    42°Lo 38°

    Mostly cloudy, afternoon rain

    Very Unlikely for a snow day
    • Snow
      7%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    Dec 23

    44°Lo 32°

    Cloudy with a few showers

    Very Unlikely for a snow day
    • Snow
      1%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Cloudy
Mostly Cloudy
Flurries
Cloudy
Mostly Cloudy
Flurries
Flurries
Mostly Cloudy
Temp (°F) 34° 36° 37° 39° 40° 41° 41° 40°
RealFeel® 25° 28° 30° 30° 32° 33° 33° 31°
Humidity 75% 71% 67% 64% 63% 64% 64% 64%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
3%
 
3%
 
3%
 
6%
 
25%
 
25%
 
25%
 
25%
Snow
 
28%
 
37%
 
40%
 
37%
 
37%
 
40%
 
40%
 
31%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 9 SSE 10 SSE 12 S 13 S 12 S 12 S 12 S 12 SSE
UV Index 0 1 1 1 1 1 0 0
Cloud Cover 83% 86% 89% 90% 89% 88% 86% 84%
Dew Point 26° 27° 28° 28° 28° 29° 29° 29°
Middle Grid line 45 F Middle Grid line 40 F Middle Grid line 35 F Middle Grid line 30 F

Temperature History - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 41° 33° N/A 35°
Low 31° 19° N/A 30°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:16 AM with 9:08 of sunlight, then sets at 4:24 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:30 AM with 10:02 of moolight, then sets at 4:32 PM

Westmont Weather Report

Chicago: Chance for a White Christmas as Pattern Turns Unsettled

December 19, 2014; 2:16 PM ET

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

48 Hour Precipitation Forecast

Sun. Snow Day Potential