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    • Tonight

      Sep 24

      42° Lo F
      Clear and chilly
    • Sun

      Sep 25

      64° /36°
      Plenty of sun
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    • Mon

      Sep 26

      66° /50°
      Mostly sunny
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    • Tue

      Sep 27

      69° /51°
      Morning rain; mostly cloudy
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    • Wed

      Sep 28

      72° /50°
      Times of clouds and sun
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    44°/42° RealFeel® 44°/40°
    Clear
    • 5 mph
    • Precipitation: 0%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 69%
    • Cloud Cover: 0%
    • Dew Point: 34° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/24/2015
    High 67° 70° N/A 78°
    Low 42° 47° N/A 50°

    Sunrise/Sunset

    • Sunrise: 6:37 AM
    • Sunset: 6:39 PM
    • Duration: 12:02 hr

    Moonrise/Moonset

    • Moonrise: 12:09 AM
    • Moonset: 3:00 PM
    • Duration: 14:51 hr
    Astronomy

    Groton 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 >