• Today

    Oct 21

    67°Lo 48°

    Mostly cloudy with a shower

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
  • Wed

    Oct 22

    60°Lo 46°

    Windy and cooler with rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Thu

    Oct 23

    59°Lo 47°

    Mostly cloudy, a little rain

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Fri

    Oct 24

    64°Lo 44°

    Breezy with periods of sun

    Low ragweed pollen levels
    • Precip
      25%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      53%
    more
  • Sat

    Oct 25

    66°Lo 46°

    Partly sunny

    Ragweed Pollen Weather
    • Precip
      6%
    • Wind
      Speed
      7 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 67° RealFeel® 68° Precipitation 55%

Day

N

E

S

W

  • W 2 mph
  • Gusts: 5 mph

Mostly cloudy with a passing shower

  • Max UV Index: 2 (Low)
  • Thunderstorms: 20%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 48° RealFeel® 44° Precipitation 67%

Night

N

E

S

W

  • NNE 5 mph
  • Gusts: 10 mph

Mostly cloudy with a couple of showers

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.18 in
  • Rain: 0.18 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs

Princeton Pollen Levels - October 21

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - Oct 21

more Historical Weather Data >
  Today Normal Record 10/21/2013
High 67° 63° 85° (1947) 66°
Low 48° 42° 28° (1952) 39°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 7:16 AM with 10:54 of sunlight, then sets at 6:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:58 AM with 12:05 of moolight, then sets at 5:03 PM

Princeton Weather Report

Storm to Affect Philly This Week With Some Rain, Wind

October 21, 2014; 5:50 AM ET

A developing nor'easter will bring some rain and wind to the Philadelphia area during the middle and latter part of the week. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps