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    • Today

      Sep 30

      60° /49°
      Cloudy and breezy
      • 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
    • Sat

      Oct 1

      54° /50°
      Breezy with periods of rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      61° /53°F
      Warmer with spotty showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Mon

      Oct 3

      63° /54°
      Cloudy with a few showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      58° /48°
      Cloudy most of the time
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    55°/53° RealFeel® 56°/52°
    Perhaps a shower
    • 2 mph
    • Precipitation: 56%
    • Rain: 0.12 in
    • Snow: 0 in
    • Humidity: 78%
    • Cloud Cover: 100%
    • Dew Point: 48° F
    • Visibility: 9 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/2/2015
    High 61° 66° N/A 55°
    Low 53° 45° N/A 49°

    Sunrise/Sunset

    • Sunrise: 6:45 AM
    • Sunset: 6:24 PM
    • Duration: 11:39 hr

    Moonrise/Moonset

    • Moonrise: 8:07 AM
    • Moonset: 7:29 PM
    • Duration: 11:22 hr
    Astronomy

    Londonderry Weather Report

    Persistent rain to raise flood risk in part of northeastern US

    September 30, 2016; 4:16 AM ET

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

    Sun. Dust & Dander

    Sun. Wind Maps