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    • Fri

      Sep 30

      70° /57°F
      A couple of showers possible
      • Poor
      • for stargazing
      • Cloud Cover: 64%
      • Precip: 60%
      • Hours of Precip: 2.5
    • Sat

      Oct 1

      74° /56°
      Mostly cloudy, rain possible
      • Poor
      • for stargazing
      • Cloud Cover: 76%
      • Precip: 55%
      • Hours of Precip: 1.5
      More
    • Sun

      Oct 2

      71° /49°
      A couple of showers possible
      • Poor
      • for stargazing
      • Cloud Cover: 96%
      • Precip: 81%
      • Hours of Precip: 7
      More
    • Mon

      Oct 3

      69° /50°
      Low clouds
      • Poor
      • for stargazing
      • Cloud Cover: 99%
      • Precip: 25%
      • Hours of Precip: 0
      More
    • Tue

      Oct 4

      70° /51°
      Times of clouds and sun
      • Poor
      • for stargazing
      • Cloud Cover: 76%
      • Precip: 2%
      • Hours of Precip: 0
      More
    70°/66° RealFeel® 69°/64°
    The chance for a couple of showers
    • 8 mph
    • Precipitation: 30%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 80%
    • Cloud Cover: 90%
    • Dew Point: 61° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 70° 70° 85° (1986) 79°
    Low 57° 50° 31° (1991) 64°

    Sunrise/Sunset

    • Sunrise: 6:55 AM
    • Sunset: 6:41 PM
    • Duration: 11:46 hr

    Moonrise/Moonset

    • Moonrise: 6:25 AM
    • Moonset: 6:45 PM
    • Duration: 12:20 hr
    Astronomy

    Solunar Information for Princeton, NJ

    Sat, Oct 1
    New
    Sun, Oct 9
    First
    Sun, Oct 16
    Full
    Sat, Oct 22
    Last

    Princeton Weather Report

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

    September 25, 2016; 9:29 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 to end this weekend. More >