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Personalized Forecasts

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    • Today

      Sep 20

      73° /65°F
      Cloudy, breezy; a p.m. shower
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Thu

      Sep 21

      78° /57°
      Pleasant with clouds and sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Sep 22

      69° /59°
      Partly sunny and not as warm
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Sep 23

      78° /59°
      Sunny and warmer
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sun

      Sep 24

      85° /64°
      Sunny and warmer
      • High
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: High
      • Tree Pollen: Low
      More

    Day

    73°Hi RealFeel® 74° Precipitation 47%
    Cloudy and breezy; a shower in spots later this afternoon
    • Winds from the
    • NNW 13 mph
    • Gusts: 23 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Night

    65°Lo RealFeel® 63° Precipitation 7%
    Mostly cloudy and warm
    • Winds from the
    • N 6 mph
    • Gusts: 16 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • 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 20

    • 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 9/20/2016
    High 73° 71° N/A 83°
    Low 65° 51° N/A 67°

    Sunrise/Sunset

    • Sunrise: 6:30 AM
    • Sunset: 6:47 PM
    • Duration: 12:17 hr

    Moonrise/Moonset

    • Moonrise: 6:44 AM
    • Moonset: 7:18 PM
    • Duration: 12:34 hr
    Astronomy

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps