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    • Mon

      Oct 3

      69° /51°
      A passing shower or two
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      62° /46°F
      Cloudy, a shower; cooler
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Wed

      Oct 5

      63° /52°
      Partly sunny
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Oct 6

      62° /49°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Oct 7

      65° /55°
      Mostly sunny and not as warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    62°Hi RealFeel® 64° Precipitation 40%
    Considerable cloudiness with a shower in spots; cooler
    • NNE 7 mph
    • Gusts: 10 mph
    • Max UV Index: 3 (Moderate)
    • Thunderstorms: 20%
    • Precipitation: 0.02 in
    • Rain: 0.02 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Night

    46°Lo RealFeel® 47° Precipitation 75%
    Considerable cloudiness with rain tapering off
    • NNE 2 mph
    • Gusts: 5 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.19 in
    • Rain: 0.19 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3.5 hrs
    • Hours of Rain: 3.5 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/4/2015
    High 62° 65° N/A 58°
    Low 46° 44° N/A 42°

    Sunrise/Sunset

    • Sunrise: 6:47 AM
    • Sunset: 6:20 PM
    • Duration: 11:33 hr

    Moonrise/Moonset

    • Moonrise: 10:01 AM
    • Moonset: 8:32 PM
    • Duration: 10:31 hr
    Astronomy

    Derry Weather Report

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

    September 29, 2016; 2:55 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 >