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.

Overcast

65°F

18°C

Humidity 93%
Wind Speed SW 12 mph
Barometer 29.84 in (1010.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 12:56 am EDT
Extended Forecast for

Fishers Island NY

  • Overnight

    Overnight: Mostly clear, with a low around 65. Southwest wind around 18 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. West wind around 15 mph, with gusts as high as 25 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Northwest wind 10 to 13 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. North wind 5 to 13 mph.

    High: 63 °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%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 67. Breezy. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 67 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of showers before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Windy.

    Low: 46 °F

    Chance
    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 41. Breezy.

    Low: 41 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 65. Southwest wind around 18 mph.
Wednesday
Sunny, with a high near 74. West wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 56. Northwest wind 10 to 13 mph.
Thursday
Sunny, with a high near 63. 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%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers. High near 67. Breezy. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of showers before 2am. Cloudy, then gradually becoming partly cloudy, with a low around 46. Windy.
Saturday
Sunny, with a high near 51. Windy.
Saturday Night
Mostly clear, with a low around 41. Breezy.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 49.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.28°N 71.98°W (Elev. 0 ft)
Last Update:
9:37 pm EDT Oct 13, 2026
Forecast Valid:
1am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation