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

28°F

-2°C

Humidity 56%
Wind Speed Calm
Barometer 30.54 in (1034.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 29 Mar 1:56 am EDT
Extended Forecast for

Fishers Island NY

  • Overnight

    Overnight: Mostly clear, with a low around 27. Northwest wind around 6 mph.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 44. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.

    High: 44 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. Southwest wind around 18 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. Breezy, with a southwest wind 18 to 21 mph.

    High: 49 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Southwest wind 11 to 18 mph. Chance of precipitation is 20%.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. Breezy.

    High: 52 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. Breezy.

    Low: 49 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 56. Breezy.

    High: 56 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 27. Northwest wind around 6 mph.
Sunday
Sunny, with a high near 44. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 41. Southwest wind around 18 mph.
Monday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. Breezy, with a southwest wind 18 to 21 mph.
Monday Night
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 46. Southwest wind 11 to 18 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 52. Breezy.
Tuesday Night
Partly cloudy, with a low around 49. Breezy.
Wednesday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 56. Breezy.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 45.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 39.
Friday
Rain likely. Cloudy, with a high near 45. Breezy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of rain. Cloudy, with a low around 41.
Saturday
A 40 percent chance of rain. Cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
2:25 am EDT Mar 29, 2026
Forecast Valid:
3am EDT Mar 29, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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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