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    • Tonight

      Sep 24

      42° Lo
      Clear and chilly
      • Beach & Pool
        • Beach & Pool
        • UV Index
      • Beach & Pool
      • Weather
      • UV: 4 - Moderate
      • Cloud Cover: 54%
      • Precip: 12%
      More
    • Sun

      Sep 25

      63° /41°F
      Mostly sunny
      • Fair
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 11%
      • Precip: 7%
    • Mon

      Sep 26

      65° /49°
      Sunny to partly cloudy
      • Very Good
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 17%
      • Precip: 4%
      More
    • Tue

      Sep 27

      67° /52°
      Periods of rain
      • Poor
      • at the beach or pool
      • UV: 2 - Low
      • Cloud Cover: 94%
      • Precip: 65%
      More
    • Wed

      Sep 28

      72° /52°
      Clouds and sunshine
      • Very Good
      • at the beach or pool
      • UV: 4 - Moderate
      • Cloud Cover: 59%
      • Precip: 22%
      More

    Day

    63°Hi RealFeel® 62° Precipitation 7%
    Mostly sunny
    • NW 9 mph
    • Gusts: 14 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 1%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    41°Lo RealFeel® 46° Precipitation 0%
    Mainly clear and cold
    • NW 2 mph
    • Gusts: 7 mph
    • Max UV Index: N/A
    • Thunderstorms: 0%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Riverside Tide Table

    Low 3:55 AM -0.1 ft
    High 8:44 AM 5.2 ft
    Low 4:13 PM 0.3 ft
    High 9:12 PM 6 ft

    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; 3:04 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. Beach & Pool

    Sun. UV Index

    Sun. Wind Maps