• Today

    Dec 21

    38°Lo 24°

    Clouds giving way to some sun

    Good for home energy
    • Avg
      RealFeel
      32°
    • Hi
      RealFeel
      39°
    • Wind
      Speed
      4 mph
  • Mon

    Dec 22

    41°Lo 34°

    Turning cloudy

    Fair for home energy
    • Avg
      RealFeel
      36°
    • Hi
      RealFeel
      40°
    • Wind
      Speed
      5 mph
    more
  • Tue

    Dec 23

    46°Lo 42°

    Rather cloudy with mist; fog

    Fair for home energy
    • Avg
      RealFeel
      42°
    • Hi
      RealFeel
      44°
    • Wind
      Speed
      6 mph
    more
  • Wed

    Dec 24

    57°Lo 41°

    Windy with rain

    Fair for home energy
    • Avg
      RealFeel
      37°
    • Hi
      RealFeel
      45°
    • Wind
      Speed
      16 mph
    more
  • Thu

    Dec 25

    47°Lo 28°

    Windy and colder

    Good for home energy
    • Avg
      RealFeel
      29°
    • Hi
      RealFeel
      36°
    • Wind
      Speed
      17 mph
    more
Next Previous
Hi 38° RealFeel® 39° Precipitation 7%

Day

N

E

S

W

  • NNW 4 mph
  • Gusts: 7 mph

Clouds giving way to some sun

  • Max UV Index: 1 (Low)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 24° RealFeel® 24° Precipitation 1%

Night

N

E

S

W

  • N 2 mph
  • Gusts: 5 mph

Patchy clouds

  • 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 - Dec 21

more Historical Weather Data >
  Today Normal Record 12/21/2013
High 38° 39° 57° (1957) 50°
Low 24° 22° -3° (1942) 33°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:22 AM with 9:15 of sunlight, then sets at 4:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:35 AM with 10:07 of moolight, then sets at 4:42 PM

Bethlehem Weather Report

Philly: Quiet Weekend Weather to be Followed by Christmas Eve Storm

December 21, 2014; 4:16 AM ET

Following benign weather this weekend, a major storm will affect Philadelphia, much of the East and Midwest on Christmas Eve. 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.

Sun. Home Energy Efficiency

Sun. Degree Days

Sun. UV Index