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    • Today

      Sep 29

      64° /47°
      Partly sunny and warmer
      • Poor
      • for home energy
      • Avg RealFeel: 50°
      • Hi RealFeel: 63°
      • Wind Speed: 12 mph
      More
    • Fri

      Sep 30

      61° /50°
      Cloudy and windy
      • Poor
      • for home energy
      • Avg RealFeel: 51°
      • Hi RealFeel: 56°
      • Wind Speed: 16 mph
      More
    • Sat

      Oct 1

      55° /51°F
      Breezy with periods of rain
      • Poor
      • for home energy
      • Avg RealFeel: 47°
      • Hi RealFeel: 48°
      • Wind Speed: 14 mph
    • Sun

      Oct 2

      61° /54°
      Occasional rain and drizzle
      • Poor
      • for home energy
      • Avg RealFeel: 57°
      • Hi RealFeel: 61°
      • Wind Speed: 5 mph
      More
    • Mon

      Oct 3

      63° /54°
      Cloudy with a shower in spots
      • Poor
      • for home energy
      • Avg RealFeel: 58°
      • Hi RealFeel: 63°
      • Wind Speed: 4 mph
      More
    Saturday
    9am
    10am
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    12pm
    1pm
    2pm
    3pm
    4pm
    Forecast Rain Cloudy Cloudy Rain Rain Rain Rain Cloudy
    Temp (°F) 51° 51° 52° 52° 53° 53° 54° 55°
    RealFeel® 43° 46° 46° 43° 42° 42° 44° 48°
    Wind (mph) 10 NNE 12 NNE 13 NNE 14 NE 17 NE 18 NE 16 NE 16 NE
    precip
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Rain
    64%
    49%
    49%
    64%
    64%
    64%
    64%
    49%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    UV Index 0 1 1 1 1 1 1 1
    Cloud Cover 99% 99% 99% 99% 99% 99% 99% 99%
    Humidity 88% 87% 88% 88% 88% 92% 96% 97%
    Dew Point 47° 47° 48° 49° 49° 51° 53° 54°
    Temp °F
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 55° 66° N/A 65°
    Low 51° 46° N/A 50°

    Sunrise/Sunset

    • Sunrise: 6:44 AM
    • Sunset: 6:25 PM
    • Duration: 11:41 hr

    Moonrise/Moonset

    • Moonrise: 7:09 AM
    • Moonset: 7:00 PM
    • Duration: 11:51 hr
    Astronomy

    Londonderry Weather Report

    Persistent rain to raise flood risk in part of northeastern US

    September 29, 2016; 3:16 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 >

    Sat. Home Energy Efficiency

    Sat. Degree Days

    Sat. UV Index