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    • Thu

      Sep 29

      73° /54°F
      Clouds and breaks of sun
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Fri

      Sep 30

      75° /51°
      A couple of showers possible
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      73° /52°
      Mostly cloudy, rain possible
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      73° /49°
      A couple of showers possible
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      73° /47°
      Partly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    73°Hi RealFeel® 75° Precipitation 25%
    Clouds and breaks of sun
    • NE 6 mph
    • Gusts: 9 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 8%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    54°Lo RealFeel® 54° Precipitation 55%
    Clouds breaking; occasional rain and drizzle in the evening followed by a passing shower late
    • NE 4 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.05 in
    • Rain: 0.05 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/29/2015
    High 73° 71° 88° (1921) 83°
    Low 54° 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

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 24, 2016; 11:09 PM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region this weekend. More >

    Thu. Dust & Dander

    Thu. Wind Maps