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.

Fair

51°F

11°C

Humidity 64%
Wind Speed S 8 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 9 Mar 11:56 am EDT
Extended Forecast for

Fishers Island NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 50. South wind around 7 mph.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 37. Southeast wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 52. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 52 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. Southwest wind around 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Cloudy, with a high near 48. Southeast wind 8 to 14 mph.

    High: 48 °F

    Cloudy then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 45. Breezy.

    Low: 45 °F

    Chance Rain
    and Breezy

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 51. Breezy. Chance of precipitation is 60%.

    High: 51 °F

    Breezy. Rain
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Partly cloudy, with a low around 32. Breezy. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Rain/Snow and
    Breezy then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 50. South wind around 7 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 37. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 52. Calm wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 40. Southwest wind around 7 mph.
Wednesday
A 20 percent chance of showers after 2pm. Cloudy, with a high near 48. Southeast wind 8 to 14 mph.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45. Breezy.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 51. Breezy. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 32. Breezy. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 41.
Friday Night
A 50 percent chance of rain after 8pm. Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 44. Breezy.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
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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:
11:18 am EDT Mar 9, 2026
Forecast Valid:
12pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
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Additional Resources

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Chance of Precipitation