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    • Early AM

      Sep 25

      47° Lo
      Colder
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Today

      Sep 25

      71° /44°F
      Sunny and pleasant
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
    • Mon

      Sep 26

      74° /61°
      Mostly sunny and pleasant
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      72° /49°
      A little morning rain
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      74° /52°
      Pleasant with clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Sunday
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    Forecast Clear Clear Clear Clear Clear Sunny Sunny Sunny
    Temp (°F) 53° 52° 50° 49° 47° 50° 52° 56°
    RealFeel® 53° 51° 49° 48° 46° 49° 52° 57°
    Wind (mph) 5 N 5 N 5 N 5 NNW 5 NNW 5 NNW 5 NNW 5 NNW
    precip
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    Rain
    0%
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    Snow
    0%
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    Ice
    0%
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    SKY
    2am
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    UV Index 0 0 0 0 0 0 0 1
    Cloud Cover 0% 0% 0% 0% 0% 0% 0% 0%
    Humidity 70% 68% 69% 71% 75% 75% 68% 61%
    Dew Point 44° 41° 40° 40° 39° 42° 42° 43°
    Temp °F
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    60° 55° 50° 45°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 71° 72° 92° (1970) 76°
    Low 44° 52° 36° (1997) 60°

    Sunrise/Sunset

    • Sunrise: 6:49 AM
    • Sunset: 6:51 PM
    • Duration: 12:02 hr

    Moonrise/Moonset

    • Moonrise: 12:28 AM
    • Moonset: 3:08 PM
    • Duration: 14:40 hr
    Astronomy

    Princeton Weather Report

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

    September 24, 2016; 9:32 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 >

    Sun. Pollen

    Sun. Dust & Dander

    Sun. Wind Maps