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    • Early AM

      Sep 30

      57° Lo
      Rain
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Today

      Sep 30

      62° /59°F
      Breezy with rain and drizzle
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Sat

      Oct 1

      68° /60°
      Mostly cloudy, a little rain
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      72° /59°
      A passing shower or two
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      76° /58°
      Mostly cloudy with a shower
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    Friday
    7am
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    Forecast Cloudy Rain Rain Cloudy Rain Rain Cloudy Cloudy
    Temp (°F) 57° 55° 56° 56° 57° 58° 59° 60°
    RealFeel® 51° 47° 47° 51° 50° 51° 55° 56°
    Wind (mph) 15 NE 12 NE 13 NE 13 NE 13 NE 14 NE 14 NE 15 NE
    precip
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    2pm
    Rain
    48%
    59%
    59%
    49%
    55%
    55%
    49%
    49%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    2pm
    UV Index 0 0 0 1 1 1 1 1
    Cloud Cover 99% 100% 99% 98% 98% 98% 99% 100%
    Humidity 87% 90% 90% 91% 93% 92% 90% 90%
    Dew Point 53° 53° 53° 54° 55° 56° 56° 57°
    Temp °F
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
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    65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 62° 70° 85° (1986) 79°
    Low 59° 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

    Princeton Weather Report

    Persistent rain to raise flood risk in part of northeastern US

    September 30, 2016; 1:16 AM ET

    Persistent downpours will raise the flood risk in part of the mid-Atlantic into Friday night, while rain will spread over the balance of the northeastern United States into the weekend. More >

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps