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

24°F

-4°C

Humidity 46%
Wind Speed W 12 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 20 Jan 2:56 am EST
Extended Forecast for

Fishers Island NY

  • Overnight

    Overnight: Mostly clear, with a low around 18. Wind chill values between 10 and 15. Breezy, with a west wind around 23 mph.

    Low: 18 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 24. Wind chill values between 10 and 15. Breezy, with a west wind around 22 mph.

    High: 24 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14. Wind chill values between 5 and 10. Breezy, with a west wind 11 to 20 mph.

    Low: 14 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 40. Wind chill values between 5 and 15. West wind 10 to 18 mph becoming southwest in the afternoon.

    High: 40 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers after 1am. Mostly cloudy, with a temperature rising to around 40 by 11pm. Breezy, with a southwest wind 18 to 22 mph.

    Low: 36 °F⇑

    Breezy.
    Cloudy then
    Slight Chance
    Snow Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12. Breezy.

    Low: 12 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Overnight
Mostly clear, with a low around 18. Wind chill values between 10 and 15. Breezy, with a west wind around 23 mph.
Tuesday
Sunny, with a high near 24. Wind chill values between 10 and 15. Breezy, with a west wind around 22 mph.
Tuesday Night
Mostly clear, with a low around 14. Wind chill values between 5 and 10. Breezy, with a west wind 11 to 20 mph.
Wednesday
Increasing clouds, with a high near 40. Wind chill values between 5 and 15. West wind 10 to 18 mph becoming southwest in the afternoon.
Wednesday Night
A 20 percent chance of snow showers after 1am. Mostly cloudy, with a temperature rising to around 40 by 11pm. Breezy, with a southwest wind 18 to 22 mph.
Thursday
Mostly sunny, with a high near 41.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 12. Breezy.
Saturday
Mostly sunny and cold, with a high near 18.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11.
Sunday
A 50 percent chance of snow. Mostly cloudy and cold, with a high near 20.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 23.
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:
1:07 am EST Jan 20, 2026
Forecast Valid:
3am EST Jan 20, 2026-6pm EST Jan 26, 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