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    • Tonight

      Sep 24

      42° Lo
      Clear and chilly
      • Home Energy Efficiency
      • Weather
      • Avg RealFeel: 54°
      • Hi RealFeel: 65°
      • Wind Speed: 9 mph
      More
    • Sun

      Sep 25

      63° /41°F
      Mostly sunny
      • Poor
      • for home energy
      • Avg RealFeel: 54°
      • Hi RealFeel: 62°
      • Wind Speed: 9 mph
    • Mon

      Sep 26

      65° /49°
      Sunny to partly cloudy
      • Poor
      • for home energy
      • Avg RealFeel: 60°
      • Hi RealFeel: 71°
      • Wind Speed: 4 mph
      More
    • Tue

      Sep 27

      67° /52°
      Periods of rain
      • Poor
      • for home energy
      • Avg RealFeel: 59°
      • Hi RealFeel: 65°
      • Wind Speed: 5 mph
      More
    • Wed

      Sep 28

      72° /52°
      Clouds and sunshine
      • Poor
      • for home energy
      • Avg RealFeel: 63°
      • Hi RealFeel: 74°
      • Wind Speed: 5 mph
      More
    Sunday
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    Forecast Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Sunny
    Temp (°F) 55° 58° 60° 61° 61° 63° 61° 60°
    RealFeel® 56° 60° 61° 62° 62° 62° 59° 57°
    Wind (mph) 10 NW 10 NW 10 NW 10 NW 10 NW 10 NW 10 NW 9 NW
    precip
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    UV Index 3 4 4 4 3 2 1 0
    Cloud Cover 10% 16% 22% 25% 22% 16% 10% 5%
    Humidity 41% 37% 32% 30% 29% 28% 29% 33%
    Dew Point 32° 32° 30° 29° 28° 29° 29° 31°
    Temp °F
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    5pm
    6pm
    65° 60° 55°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/25/2015
    High 63° 69° N/A 69°
    Low 41° 48° N/A 52°

    Sunrise/Sunset

    • Sunrise: 6:37 AM
    • Sunset: 6:36 PM
    • Duration: 11:59 hr

    Moonrise/Moonset

    • Moonrise: 1:07 AM
    • Moonset: 3:46 PM
    • Duration: 14:39 hr
    Astronomy

    Londonderry Weather Report

    Crisp fall air to bring first frost of season to parts of northeastern US

    September 24, 2016; 9:32 PM ET

    Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region this weekend. More >

    Sun. Home Energy Efficiency

    Sun. Degree Days

    Sun. UV Index