• 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
Partly cloudy 20° RealFeel® 8°

N

E

S

W

  • Humidity: 59%
  • Pressure: 30.17 in ↑
  • UV Index: 0
  • Cloud Cover: 35%
  • Ceiling: 19700 ft
  • Dew Point: 8° F
  • Visibility: 10 mi
10 mph

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

Temperature Summary - 9:55 PM

  Temp (°F)
Now 20°
Yesterday 10°
RealFeel®
RealFeel® Shade
Wind Chill
Dew Point
  Hi / Lo
Previous 6 Hours 25°
  20°
Previous 12 Hours 27°
  20°
Previous 24 Hours 31°
  18°

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°

Precipitation Summary - 9:55 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0
Previous 6 Hours 0
Previous 9 Hours 0
Previous 12 Hours 0
Previous 18 Hours 0
Previous 24 Hours 0.01

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