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    • Today

      Sep 29

      65° /57°F
      Windy with periods of rain
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Fri

      Sep 30

      63° /58°
      Windy with rain and drizzle
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      67° /62°
      Cloudy, a little rain; breezy
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      73° /60°
      Rather cloudy with a shower
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      75° /56°
      Mostly cloudy, brief showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    65°Hi RealFeel® 62° Precipitation 66%
    Windy with periods of rain
    • ENE 21 mph
    • Gusts: 36 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 1%
    • Precipitation: 0.3 in
    • Rain: 0.3 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 5.5 hrs
    • Hours of Rain: 5.5 hrs

    Night

    57°Lo RealFeel® 46° Precipitation 70%
    Windy and mild with periods of rain
    • NE 16 mph
    • Gusts: 25 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0.39 in
    • Rain: 0.39 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 6 hrs
    • Hours of Rain: 6 hrs

    Princeton Pollen Levels Sep 29

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      Moderate

    • Mold

      High

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 65° 71° 88° (1921) 83°
    Low 57° 51° 38° (1942) 67°

    Sunrise/Sunset

    • Sunrise: 6:54 AM
    • Sunset: 6:43 PM
    • Duration: 11:49 hr

    Moonrise/Moonset

    • Moonrise: 5:27 AM
    • Moonset: 6:15 PM
    • Duration: 12:48 hr
    Astronomy

    Princeton Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 29, 2016; 4:55 AM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps