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

42°F

6°C

Humidity 82%
Wind Speed S 5 mph
Barometer 29.69 in (1005.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 14 Jan 4:56 am EST
Extended Forecast for

Fishers Island NY

  • Overnight

    Overnight: Isolated showers. Cloudy, with a low around 41. Southwest wind around 16 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Isolated
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 44. Southwest wind 10 to 14 mph.

    High: 44 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 42. South wind 8 to 10 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 5pm. Wind chill values between 20 and 30. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon.

    High: 42 °F⇓

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 23. Windy, with a west wind 23 to 26 mph, with gusts as high as 36 mph.

    Low: 23 °F

    Partly Cloudy
    and Windy

  • Friday

    Friday: Sunny, with a high near 36. Windy.

    High: 36 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Isolated showers. Cloudy, with a low around 41. Southwest wind around 16 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 44. Southwest wind 10 to 14 mph.
Wednesday Night
Showers likely, mainly between 1am and 4am. Cloudy, with a steady temperature around 42. South wind 8 to 10 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 5pm. Wind chill values between 20 and 30. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 23. Windy, with a west wind 23 to 26 mph, with gusts as high as 36 mph.
Friday
Sunny, with a high near 36. Windy.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 25.
M.L.King Day
Mostly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 30. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
1:35 am EST Jan 14, 2026
Forecast Valid:
5am EST Jan 14, 2026-6pm EST Jan 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