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    • Tonight

      Sep 26

      51° Lo F
      A little late-night rain
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Tue

      Sep 27

      72° /54°
      A little rain in the morning
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      61° /53°
      Times of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      60° /54°
      Rather cloudy with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      59° /55°
      Cloudy and breezy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    59°/51° RealFeel® 58°/51°
    Increasing clouds
    • 5 mph
    • Precipitation: 10%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 75%
    • Cloud Cover: 44%
    • Dew Point: 47° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 66° 68° N/A 67°
    Low 51° 48° N/A 44°

    Sunrise/Sunset

    • Sunrise: 6:38 AM
    • Sunset: 6:34 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 2:08 AM
    • Moonset: 4:26 PM
    • Duration: 14:18 hr
    Astronomy

    Londonderry Weather Report

    Rounds of rain to frequent northeastern US this week

    September 26, 2016; 5:02 PM ET

    Bouts of wet weather will soak the northeastern United States during the last full week of September. More >

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps