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    • Early AM

      Sep 29

      63° Lo
      Rain
      • 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: Moderate
      More
    • Today

      Sep 29

      68° /61°
      Some rain and a thunderstorm
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Moderate
      More
    • Fri

      Sep 30

      68° /63°F
      Windy with rain and drizzle
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Moderate
    • Sat

      Oct 1

      72° /65°
      A passing shower or two
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Moderate
      More
    • Sun

      Oct 2

      79° /61°
      Mostly cloudy with a shower
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Moderate
      More

    Day

    68°Hi RealFeel® 63° Precipitation 57%
    Windy with occasional rain and drizzle
    • NE 20 mph
    • Gusts: 36 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 20%
    • Precipitation: 0.11 in
    • Rain: 0.11 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Night

    63°Lo RealFeel® 56° Precipitation 60%
    Considerable cloudiness and breezy with a couple of showers
    • NE 15 mph
    • Gusts: 25 mph
    • Max UV Index: N/A
    • Thunderstorms: 24%
    • Precipitation: 0.08 in
    • Rain: 0.08 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Chester Pollen Levels Sep 30

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Moderate

    • Ragweed Pollen

      Moderate

    • Mold

      High

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/30/2015
    High 68° 72° 88° (1881) 82°
    Low 63° 54° 38° (1942) 65°

    Sunrise/Sunset

    • Sunrise: 6:57 AM
    • Sunset: 6:44 PM
    • Duration: 11:47 hr

    Moonrise/Moonset

    • Moonrise: 6:27 AM
    • Moonset: 6:48 PM
    • Duration: 12:21 hr
    Astronomy

    Chester Weather Report

    Persistent rain to raise flood risk in part of northeastern US late this week

    September 29, 2016; 12:55 AM ET

    Rain will spread over much of the northeastern U.S. into the weekend, but persistent downpours will raise the flood risk in part of the mid-Atlantic. More >

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps