• Tonight

    Feb 11

    Lo 12°

    Partly cloudy and cold

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • 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
    more
  • 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
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Forecast
Flurries
Cloudy
Partly Cloudy
Cloudy
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Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 26° 25° 24° 23° 22° 21° 21° 20°
RealFeel®
Humidity 43% 42% 42% 43% 45% 47% 49% 50%
   
  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Rain
 
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Snow
 
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  3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm
Wind (mph) 18 NW 17 WNW 17 WNW 16 WNW 16 WNW 15 WNW 13 WNW 13 WNW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 99% 98% 71% 55% 40% 40% 46% 46%
Dew Point
Middle Grid line 30 F Middle Grid line 25 F Middle Grid line 20 F Middle Grid line 15 F

Temperature History - Feb 11

more Historical Weather Data >
  Today Normal Record 2/11/2015
High 27° 41° 67° (2009) 36°
Low 12° 25° -9° (1899) 22°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:57 AM with 10:32 of sunlight, then sets at 5:29 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 8:45 AM with 12:34 of moolight, then sets at 9:19 PM

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 >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps