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    • Tonight

      Sep 21

      58° Lo F
      Partly cloudy
      • 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
    • Fri

      Sep 22

      69° /58°
      Partly sunny and pleasant
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Sep 23

      82° /61°
      Sunny and warmer
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sun

      Sep 24

      87° /64°
      A full day of sunshine
      • High
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More
    • Mon

      Sep 25

      88° /63°
      Mostly sunny, warm and muggy
      • High
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More

    Day

    73°Hi RealFeel® 77° Precipitation 1%
    Pleasant with a blend of sunshine and clouds
    • Winds from the
    • NNE 12 mph
    • Gusts: 21 mph
    • Max UV Index: 9 (Very High)
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    58°Lo RealFeel® 56° Precipitation 8%
    Partly cloudy
    • Winds from the
    • NNE 7 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Derry Pollen Levels Sep 21

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

      Low

    • Ragweed Pollen

      Moderate

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/21/2016
    High 73° 70° N/A 81°
    Low 58° 50° N/A 61°

    Sunrise/Sunset

    • Sunrise: 6:31 AM
    • Sunset: 6:45 PM
    • Duration: 12:14 hr

    Moonrise/Moonset

    • Moonrise: 7:49 AM
    • Moonset: 7:48 PM
    • Duration: 11:59 hr
    Astronomy

    Thu. Pollen

    Thu. Dust & Dander

    Thu. Wind Maps