National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

65°F

18°C

Humidity 93%
Wind Speed W 7 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 4:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 72. West wind around 15 mph.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northwest wind 10 to 15 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a steady temperature around 59. North wind 5 to 13 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Increasing clouds, with a low around 55. Southeast wind 6 to 14 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 67. Breezy, with a southeast wind 18 to 22 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers, mainly before 2am. Low around 48. Windy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers and
    Windy

  • Saturday

    Saturday: Sunny, with a high near 51. Windy.

    High: 51 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Breezy.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 72. West wind around 15 mph.
Tonight
Mostly clear, with a low around 56. Northwest wind 10 to 15 mph.
Thursday
Sunny, with a steady temperature around 59. North wind 5 to 13 mph.
Thursday Night
Showers likely after 2am. Increasing clouds, with a low around 55. Southeast wind 6 to 14 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm before 2pm, then showers likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 67. Breezy, with a southeast wind 18 to 22 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers, mainly before 2am. Low around 48. Windy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 51. Windy.
Saturday Night
Mostly clear, with a low around 42. Breezy.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.26°N 71.98°W (Elev. 0 ft)
Last Update:
1:52 am EDT Oct 14, 2026
Forecast Valid:
5am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation