• Fri

    Sep 2

    75°Lo 49°

    Sunny and pleasant

    Excellent for an outdoor bbq
    • Precip
      8%
    • Hi
      RealFeel
      79°
    • Wind
      Speed
      7 mph
    more
  • Sat

    Sep 3

    78°Lo 52°

    Plenty of sunshine

    Excellent for an outdoor bbq
    • Precip
      11%
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      4 mph
    more
  • Sun

    Sep 4

    81°Lo 59°

    Some sun

    Excellent for an outdoor bbq
    • Precip
      17%
    • Hi
      RealFeel
      82°
    • Wind
      Speed
      6 mph
  • Mon

    Sep 5

    84°Lo 62°

    Turning out cloudy

    Excellent for an outdoor bbq
    • Precip
      3%
    • Hi
      RealFeel
      83°
    • Wind
      Speed
      8 mph
    more
  • Tue

    Sep 6

    87°Lo 63°

    Mainly cloudy

    Excellent for an outdoor bbq
    • Precip
      25%
    • Hi
      RealFeel
      87°
    • Wind
      Speed
      6 mph
    more
Next Previous
Hi 81° RealFeel® 82° Precipitation 17%

Day

N

E

S

W

  • SSW 6 mph
  • Gusts: 18 mph

Some sun

  • Max UV Index: 5 (Moderate)
  • 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 59° RealFeel® 59° Precipitation 4%

Night

N

E

S

W

  • S 6 mph
  • Gusts: 20 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 1%
  • 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 4

more Historical Weather Data >
  Today Normal Record 9/4/2015
High 81° 79° N/A 88°
Low 59° 57° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:33 AM with 12:55 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:34 AM with 11:43 of moolight, then sets at 9:17 PM

Allentown Weather Report

September to start on cooler, less humid note in northeastern US

August 28, 2016; 4:04 AM ET

Brief relief from heat and humidity will arrive in the northeastern United States at the start of September. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.