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    • Today

      Sep 27

      73° /54°F
      Clouds giving way to some sun
      • 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
    • Wed

      Sep 28

      60° /51°
      Mostly cloudy and cooler
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      60° /52°
      Rather cloudy with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      59° /52°
      Cloudy with a shower or two
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      61° /54°
      Periods of rain
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    62° RealFeel® 66°
    Cloudy
    • 4 mph
    • Humidity: 86%
    • Pressure: 29.89 in ↓
    • UV Index: 1
    • Cloud Cover: 100%
    • Ceiling: 1400 ft
    • Dew Point: 58° F
    • Visibility: 10 mi

    Sunrise/Sunset

    • Sunrise: 6:39 AM
    • Sunset: 6:33 PM
    • Duration: 11:54 hr

    Moonrise/Moonset

    • Moonrise: 3:10 AM
    • Moonset: 5:01 PM
    • Duration: 13:51 hr
    Astronomy

    TEMPERATURE SUMMARY

      Temp (°F)
    Now 62°
    Yesterday 71°
    RealFeel® 66°
    RealFeel® Shade 62°
    Wind Chill 62°
    Dew Point 58°
      Hi / Lo
    Previous 6 Hours 62°/55°
    Previous 12 Hours 62°/53°
    Previous 24 Hours 68°/53°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 73° 68° N/A 72°
    Low 54° 48° N/A 39°

    PRECIPITATION SUMMARY

      Amount (in)
    Previous 1 Hour 0
    Previous 3 Hours 0
    Previous 6 Hours 0.17
    Previous 9 Hours 0.19
    Previous 12 Hours 0.19
    Previous 18 Hours 0.19
    Previous 24 Hours 0.19

    Londonderry Weather Report

    Rain to soak northeastern US during final days of September

    September 27, 2016; 10:09 AM ET

    Periods of rain will drench portions of the northeastern United States from midweek through Friday. More >

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps