National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

38°F

3°C

Humidity 68%
Wind Speed SE 10 mph
Barometer 30.25 in (1024.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 19 Mar 2:56 pm EDT
Extended Forecast for

Fishers Island NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Southwest wind 6 to 8 mph.

    Low: 35 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 2pm. Mostly sunny, with a high near 44. Light and variable wind becoming south 9 to 14 mph in the morning.

    High: 44 °F

    Mostly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 41. Breezy, with a southwest wind 15 to 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain Likely
    and Breezy

  • Saturday

    Saturday: A 30 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Northwest wind around 10 mph.

    High: 49 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. Northwest wind around 9 mph becoming southeast after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    then Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. Blustery.

    Low: 31 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 35. Southwest wind 6 to 8 mph.
Friday
A 30 percent chance of rain after 2pm. Mostly sunny, with a high near 44. Light and variable wind becoming south 9 to 14 mph in the morning.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 41. Breezy, with a southwest wind 15 to 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of rain before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 49. Northwest wind around 10 mph.
Saturday Night
Mostly cloudy, with a low around 38. Northwest wind around 9 mph becoming southeast after midnight.
Sunday
Mostly cloudy, with a high near 47.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 46. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 31. Blustery.
Tuesday
Sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fishers Island NY
 41.27°N 72.01°W (Elev. 7 ft)
Last Update:
2:27 pm EDT Mar 19, 2026
Forecast Valid:
3pm EDT Mar 19, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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