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.

Mostly Cloudy

45°F

7°C

Humidity 86%
Wind Speed SW 10 mph
Barometer 30.22 in (1023.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 30 Mar 8:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: Mostly cloudy, with a high near 49. Breezy, with a southwest wind around 22 mph, with gusts as high as 34 mph.

    High: 49 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 21 mph.

    Low: 45 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 52. Southwest wind 15 to 17 mph.

    High: 52 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. Breezy, with a southwest wind 20 to 25 mph.

    Low: 49 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A 50 percent chance of showers after 2pm. Partly sunny, with a high near 57. Breezy, with a southwest wind 18 to 23 mph.

    High: 57 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 45. Breezy.

    High: 45 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Breezy, with a southwest wind around 22 mph, with gusts as high as 34 mph.
Tonight
A 40 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 21 mph.
Tuesday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 52. Southwest wind 15 to 17 mph.
Tuesday Night
Mostly cloudy, with a low around 49. Breezy, with a southwest wind 20 to 25 mph.
Wednesday
A 50 percent chance of showers after 2pm. Partly sunny, with a high near 57. Breezy, with a southwest wind 18 to 23 mph.
Wednesday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 45. Breezy.
Thursday Night
A 30 percent chance of rain. Cloudy, with a low around 41.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 51.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 47.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 52.
Saturday Night
A 40 percent chance of rain. Cloudy, with a low around 44.
Sunday
A 50 percent chance of rain. Cloudy, with a high near 53.
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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:
5:34 am EDT Mar 30, 2026
Forecast Valid:
9am EDT Mar 30, 2026-6pm EDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation