• Today

    Sep 2

    91°Lo 66°

    Partly sunny; hot in the p.m.

    Advisory for hair frizz
    • Wind
      Gust
      6 mph
    • Precip
      1%
    • Hours of Precip
      0
  • Thu

    Sep 3

    92°Lo 69°

    Hot with sun, some clouds

    Warning for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      19%
    • Hours of Precip
      0.5
    more
  • Fri

    Sep 4

    82°Lo 60°

    Some sun, a t-storm; humid

    Warning for hair frizz
    • Wind
      Gust
      12 mph
    • Precip
      55%
    • Hours of Precip
      1
    more
  • Sat

    Sep 5

    83°Lo 54°

    Mostly sunny and pleasant

    Watch for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      3%
    • Hours of Precip
      0
    more
  • Sun

    Sep 6

    85°Lo 56°

    Mostly sunny and warm

    Watch for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      7%
    • Hours of Precip
      0
    more
Next Previous
Hi 91° RealFeel® 99° Precipitation 1%

Day

N

E

S

W

  • WSW 4 mph
  • Gusts: 6 mph

Partly sunny; patchy fog this morning, becoming hot and humid this afternoon

  • Max UV Index: 6 (High)
  • Thunderstorms: 1%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 66° RealFeel® 65° Precipitation 13%

Night

N

E

S

W

  • NW 4 mph
  • Gusts: 5 mph

Patchy clouds, warm and humid

  • Max UV Index: N/A
  • Thunderstorms: 6%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 2

more Historical Weather Data >
  Today Normal Record 9/2/2014
High 91° 80° 99° (1980) 91°
Low 66° 58° 44° (2001) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:29 AM with 13:03 of sunlight, then sets at 7:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:09 PM with 13:58 of moolight, then sets at 12:07 PM

Bethlehem Weather Report

Philadelphia: July-like Heat to Continue Through Labor Day

September 2, 2015; 4:56 AM ET

The vast majority of the time through the Labor Day weekend will feature sunshine with unseasonably hot afternoons around Philadelphia. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Wed. Hair Frizz

Wed. Wind Maps

Wed. UV Index