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    • Tonight

      Sep 29

      56° Lo
      Rain; becoming windier, mild
      • 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
    • Fri

      Sep 30

      61° /58°F
      Windy with rain and drizzle
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Sat

      Oct 1

      69° /61°
      Cloudy, a little rain; breezy
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      74° /60°
      Mainly cloudy with showers
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      76° /58°
      Mostly cloudy with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Friday
    9am
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    Forecast Rain Rain Rain Rain Cloudy Cloudy Rain Rain
    Temp (°F) 56° 57° 58° 58° 59° 60° 60° 61°
    RealFeel® 47° 48° 49° 49° 53° 53° 51° 53°
    Wind (mph) 15 NE 16 NE 15 NE 18 NE 21 NE 22 NE 20 NE 17 NE
    precip
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Rain
    61%
    66%
    61%
    61%
    49%
    49%
    56%
    56%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    UV Index 0 0 1 1 1 1 1 1
    Cloud Cover 100% 100% 100% 99% 99% 100% 100% 100%
    Humidity 89% 90% 92% 92% 90% 91% 92% 92%
    Dew Point 53° 54° 55° 56° 56° 57° 58° 59°
    Temp °F
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 61° 70° 85° (1986) 79°
    Low 58° 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 29, 2016; 6:05 PM ET

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

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps