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    • Tonight

      Sep 29

      47° Lo
      Mostly cloudy; breezy late
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      61° /50°
      Cloudy and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      55° /51°
      Breezy with periods of rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Oct 2

      61° /54°F
      Occasional rain and drizzle
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Mon

      Oct 3

      63° /54°
      Cloudy with a shower in spots
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More

    Day

    61°Hi RealFeel® 61° Precipitation 55%
    Occasional rain and drizzle
    • ENE 5 mph
    • Gusts: 8 mph
    • Max UV Index: 1 (Low)
    • Thunderstorms: 2%
    • Precipitation: 0.08 in
    • Rain: 0.08 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Night

    54°Lo RealFeel® 52° Precipitation 60%
    Considerable cloudiness with a shower late
    • NNE 4 mph
    • Gusts: 6 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.12 in
    • Rain: 0.12 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 2 hrs
    • Hours of Rain: 2 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/2/2015
    High 61° 66° N/A 55°
    Low 54° 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 29, 2016; 11:16 PM ET

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

    Sun. Dust & Dander

    Sun. Wind Maps