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

49°F

9°C

Humidity 83%
Wind Speed S 9 mph
Barometer 30.13 in (1020.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 3 Apr 5:56 pm EDT
Extended Forecast for

Fishers Island NY

  • Tonight

    Tonight: Areas of dense fog after 8pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 13 to 15 mph.

    Low: 47 °F

    Areas Dense
    Fog

  • Saturday

    Saturday: Areas of dense fog before 11am. Otherwise, mostly cloudy through mid morning, then becoming sunny, with a high near 53. Northwest wind 6 to 15 mph becoming east in the afternoon.

    High: 53 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a steady temperature around 44. Breezy, with an east wind 13 to 20 mph.

    Low: 44 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 52. Breezy, with a southwest wind 17 to 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 41. Northwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers then
    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 46.

    High: 46 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of dense fog after 8pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 13 to 15 mph.
Saturday
Areas of dense fog before 11am. Otherwise, mostly cloudy through mid morning, then becoming sunny, with a high near 53. Northwest wind 6 to 15 mph becoming east in the afternoon.
Saturday Night
A 50 percent chance of showers. Cloudy, with a steady temperature around 44. Breezy, with an east wind 13 to 20 mph.
Sunday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers after 2pm. High near 52. Breezy, with a southwest wind 17 to 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers, mainly before 8pm. Low around 41. Northwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 46.
Tuesday Night
Mostly clear, with a low around 31.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, 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:
2:23 pm EDT Apr 3, 2026
Forecast Valid:
6pm EDT Apr 3, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation