• Tonight

    Feb 11

    Lo 12°

    Partly cloudy and cold

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Feb 12

    27°Lo 17°

    Turning cloudy and cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Feb 13

    20°Lo 3°

    Windy and very cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Feb 14

    18°Lo 6°

    Sunny and bitterly cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Mon

    Feb 15

    29°Lo 23°

    Cloudy and not as cold

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    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
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Temp (°F) 11° 13° 15° 16° 17° 18°
RealFeel® -6° -2° 10° 10°
Humidity 26% 24% 22% 20% 18% 17% 17% 18%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
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  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 10 NW 12 NW 10 NW 10 NW 9 NW 9 NW 9 NW 8 NW
UV Index 1 2 3 3 3 2 1 0
Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
Dew Point -22° -22° -22° -22° -22° -22° -21° -19°
Middle Grid line 20 F Middle Grid line 15 F Middle Grid line 10 F Middle Grid line 5 F

Temperature History - Feb 14

more Historical Weather Data >
  Today Normal Record 2/14/2015
High 18° 42° 66° (1946) 31°
Low 26° (1916) 12°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:54 AM with 10:39 of sunlight, then sets at 5:33 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:40 AM with 14:04 of moolight, then sets at 12:44 AM

Princeton Weather Report

Philadelphia: Polar vortex to smack region during Valentine's Day weekend

February 11, 2016; 8:38 AM ET

The coldest air of the winter and perhaps during all of last winter will plunge across the Philadelphia area during Valentine's Day weekend. more >

Sun. Dust & Dander

Sun. Wind Maps