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.

Light Rain Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed N 8 G 21 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 63°F (17°C)
Visibility 2.50 mi
Last update 6 Jul 12:56 pm EDT
Extended Forecast for

Fishers Island NY

Flood Watch July 6, 01:49pm until July 7, 06:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 6, 01:49pm until July 7, 06:00am

    NOW until 6:00am Tue

    Flood Watch

  • This Afternoon

    High: 68 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Steady temperature around 68. Breezy, with an east wind 17 to 22 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Low: 68 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 71. Northeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 71 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 64. North wind 10 to 14 mph.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. North wind 5 to 10 mph becoming south in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers. High near 68. Breezy, with an east wind around 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm. Steady temperature around 68. Breezy, with an east wind 17 to 22 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tuesday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 71. Northeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 64. North wind 10 to 14 mph.
Wednesday
Mostly sunny, with a high near 76. North wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 69.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 76.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 76.
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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:
1:29 pm EDT Jul 6, 2026
Forecast Valid:
1pm EDT Jul 6, 2026-6pm EDT Jul 12, 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