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

46°F

8°C

Humidity 47%
Wind Speed NW 12 G 21 mph
Barometer 30.37 in (1028.4 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 11 Apr 11:56 pm EDT
Extended Forecast for

Fishers Island NY

Frost Advisory until April 12, 09:00am
Click here for hazard details and duration
Frost Advisory
  •  
    Frost Advisory until April 12, 09:00am

    NOW until 9:00am Sun

    Frost Advisory

  • Overnight

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 49. North wind 5 to 11 mph becoming south in the morning. Winds could gust as high as 21 mph.

    High: 49 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 44. South wind 13 to 15 mph.

    Low: 44 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly cloudy, with a high near 55. Southwest wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 55 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of showers before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Southwest wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 37. North wind 7 to 10 mph.
Sunday
Increasing clouds, with a high near 49. North wind 5 to 11 mph becoming south in the morning. Winds could gust as high as 21 mph.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44. South wind 13 to 15 mph.
Monday
Mostly cloudy, with a high near 55. Southwest wind 15 to 18 mph, with gusts as high as 29 mph.
Monday Night
A 20 percent chance of showers before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Southwest wind 11 to 18 mph, with gusts as high as 28 mph.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 56.
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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:
6:36 pm EDT Apr 11, 2026
Forecast Valid:
12am EDT Apr 12, 2026-6pm EDT Apr 18, 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