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

36°F

2°C

Humidity 79%
Wind Speed W 7 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 20 Apr 4:56 am EDT
Extended Forecast for

Fishers Island NY

Frost Advisory April 20, 05:54am until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory April 20, 05:54am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 51 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Wind chill values between 25 and 30. North wind around 10 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. Wind chill values between 25 and 35 early. North wind 6 to 10 mph becoming southwest in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Increasing clouds, with a low around 39. Southwest wind around 10 mph.

    Low: 39 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 48. South wind 11 to 13 mph.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers after 10am. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 51. West wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 32. Wind chill values between 25 and 30. North wind around 10 mph.
Tuesday
Sunny, with a high near 46. Wind chill values between 25 and 35 early. North wind 6 to 10 mph becoming southwest in the afternoon.
Tuesday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 39. Southwest wind around 10 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 48. South wind 11 to 13 mph.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 50.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
2:20 am EDT Apr 20, 2026
Forecast Valid:
5am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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