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

52°F

11°C

Humidity 83%
Wind Speed NA
Barometer 30.03 in (1016.7 mb)
Dewpoint 47°F (8°C)
Visibility 9.00 mi
Last update 1 Apr 1:56 pm EDT
Extended Forecast for

Fishers Island NY

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 53. Southwest wind around 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 41. Northeast wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 8am. High near 42. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Breezy.
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 40. East wind 10 to 16 mph.

    Low: 40 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 51. East wind 7 to 11 mph becoming southwest in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 53. Breezy. Chance of precipitation is 70%.

    High: 53 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Steady temperature around 53. Southwest wind around 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm. Low around 41. Northeast wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, mainly before 8am. High near 42. Breezy, with a northeast wind 18 to 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Cloudy, with a low around 40. East wind 10 to 16 mph.
Friday
Mostly cloudy, with a high near 51. East wind 7 to 11 mph becoming southwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 53. Breezy. Chance of precipitation is 70%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 42. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 46.
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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:
2:31 pm EDT Apr 1, 2026
Forecast Valid:
2pm EDT Apr 1, 2026-6pm EDT Apr 7, 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