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.

A Few Clouds

28°F

-2°C

Humidity 92%
Wind Speed Calm
Barometer 30.23 in (1023.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 5 Mar 4:56 am EST
Extended Forecast for

Fishers Island NY

  • Today

    Today: Rain, mainly after 8am. Patchy fog. High near 38. Light northeast wind increasing to 8 to 13 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain. Patchy fog. Low around 35. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain, mainly before 7am. Patchy fog before 10am. High near 39. Northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain and
    Patchy Fog
    then Chance
    Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 35. Northeast wind 6 to 11 mph becoming light after midnight.

    Low: 35 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 45. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 45 °F

    Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 45 by 4am. Chance of precipitation is 60%.

    Low: 42 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 50.

    High: 50 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Rain, mainly after 8am. Patchy fog. High near 38. Light northeast wind increasing to 8 to 13 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Rain. Patchy fog. Low around 35. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain, mainly before 7am. Patchy fog before 10am. High near 39. Northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Cloudy, with a low around 35. Northeast wind 6 to 11 mph becoming light after midnight.
Saturday
Cloudy, with a high near 45. Light and variable wind becoming south 6 to 11 mph in the morning.
Saturday Night
Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 45 by 4am. Chance of precipitation is 60%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Cloudy, with a high near 50. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
12:54 am EST Mar 5, 2026
Forecast Valid:
5am EST Mar 5, 2026-6pm EDT Mar 11, 2026
 
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Additional Resources

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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