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.

Fair

88°F

31°C

Humidity 75%
Wind Speed W 9 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 24 Jun 12:56 pm EDT
Extended Forecast for

Fishers Island NY

Heat Advisory June 24, 01:31pm until June 24, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 24, 01:31pm until June 24, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. West wind 6 to 10 mph.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 81. Northwest wind 6 to 8 mph becoming southwest in the afternoon.

    High: 81 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Northeast wind 5 to 7 mph.

    Low: 66 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a steady temperature around 67. East wind around 11 mph. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 66.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Southwest wind around 10 mph.
Tonight
Mostly clear, with a low around 71. West wind 6 to 10 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 81. Northwest wind 6 to 8 mph becoming southwest in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Northeast wind 5 to 7 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a steady temperature around 67. East wind around 11 mph. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 62.
Friday
Mostly cloudy, with a high near 66.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 62.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.26°N 71.98°W (Elev. 0 ft)
Last Update:
6:48 am EDT Jun 24, 2025
Forecast Valid:
1pm EDT Jun 24, 2025-6pm EDT Jun 30, 2025
 
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