• Cloudy 71°
    Ragweed Pollen Current Weather
    • Relative Humidity
      72%
    • Yesterday
      Temp
      69°
    • RealFeel
      69°
  • Early AM

    Aug 21

    Lo 64°

    A passing shower

    Ragweed Pollen Weather
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Today

    Aug 21

    Hi 81°

    Couple of showers, t-storms

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    Day Details >
  • Tomorrow

    Aug 22

    Hi 76°

    A passing shower or two

    Low ragweed pollen levels
    • Grass
      Pollen
      0 - Low
    • Ragweed
      Pollen
      5 - Low
    • Tree
      Pollen
      0 - Low
    Day Details >
Next

Thunderstorms this afternoon

8/21 8/22 Now: 1:09am
AM 1-5
  • 1am Cloudy 67° 8%
  • 2am Showers 66° 51%
  • 3am Cloudy 65° 47%
  • 4am Cloudy 64° 35%
  • 5am Cloudy 65° 19%
PM 12-5
  • 12pm Intermittent clouds 78° 33%
  • 1pm Intermittent clouds 78° 37%
  • 2pm Intermittent clouds 79° 49%
  • 3pm Mostly cloudy w/ t-storms 77° 53%
  • 4pm Intermittent clouds 81° 49%
  • 5pm Intermittent clouds 79° 43%
PM 6-11
  • 6pm Intermittent clouds 78° 47%
  • 7pm Thunderstorms 73° 51%
  • 8pm Mostly cloudy 72° 47%
  • 9pm Mostly cloudy 70° 47%
  • 10pm Showers 70° 51%
  • 11pm Showers 69° 51%
Hourly Forecast >

Princeton Pollen Levels - August 21

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

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

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Top Story

Princeton Weather Report

Philly: Downpour, Flooding Risk to Increase

August 20, 2014; 12:02 PM ET

A wedge of dry air will slowly erode at midweek and will allow drenching showers and thunderstorms to survive the trip into Philadelphia from the Midwest. more >

Allergies Live Feed

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Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps