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Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

A Few Clouds

42°F

6°C

Humidity 76%
Wind Speed NW 14 G 22 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 19 Apr 6:56 pm EDT
Extended Forecast for

Fishers Island NY

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

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. West wind 8 to 17 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Partly Cloudy
    then Areas
    Frost

  • Monday

    Monday: A 30 percent chance of showers after noon. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 50. West wind 5 to 9 mph.

    High: 50 °F

    Areas Frost
    then Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Wind chill values between 20 and 25. North wind 9 to 13 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49. Wind chill values between 20 and 30 early. North wind 5 to 10 mph becoming south in the afternoon.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Increasing clouds, with a low around 42. South wind 9 to 11 mph.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 35. West wind 8 to 17 mph, with gusts as high as 30 mph.
Monday
A 30 percent chance of showers after noon. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 50. West wind 5 to 9 mph.
Monday Night
Partly cloudy, with a low around 31. Wind chill values between 20 and 25. North wind 9 to 13 mph.
Tuesday
Sunny, with a high near 49. Wind chill values between 20 and 30 early. North wind 5 to 10 mph becoming south in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Increasing clouds, with a low around 42. South wind 9 to 11 mph.
Wednesday
Mostly cloudy, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 55.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 44.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 51.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 52.
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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:
6:50 pm EDT Apr 19, 2026
Forecast Valid:
7pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation