National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Mostly Cloudy

75°F

24°C

Humidity 79%
Wind Speed N 8 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 18 Sep 9:56 am EDT
Extended Forecast for

Fishers Island NY

  • Today

    Today: Sunny, with a high near 77. Northwest wind 7 to 9 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 53. Northeast wind 8 to 15 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Northeast wind 6 to 11 mph becoming east in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59. East wind around 7 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely after 2pm. Mostly cloudy, with a high near 66. Southeast wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Steady temperature around 65. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.

    Low: 65 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 77. Northwest wind 7 to 9 mph.
Tonight
Partly cloudy, with a low around 53. Northeast wind 8 to 15 mph.
Saturday
Mostly sunny, with a high near 66. Northeast wind 6 to 11 mph becoming east in the afternoon.
Saturday Night
Increasing clouds, with a low around 59. East wind around 7 mph.
Sunday
Showers likely after 2pm. Mostly cloudy, with a high near 66. Southeast wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Steady temperature around 65. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.
Monday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 58.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 62. Breezy.
Tuesday Night
Mostly cloudy, with a low around 57. Breezy.
Wednesday
Partly sunny, with a high near 63. Windy.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 57. Windy.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 64. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.28°N 71.98°W (Elev. 0 ft)
Last Update:
5:16 am EDT Sep 18, 2026
Forecast Valid:
10am EDT Sep 18, 2026-6pm EDT Sep 24, 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