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.

A Few Clouds

42°F

6°C

Humidity 89%
Wind Speed W 8 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 30 Nov 11:56 pm EST
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Partly cloudy, with a low around 36. West wind around 11 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 8 to 13 mph, with gusts as high as 24 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 26. Calm wind.

    Low: 26 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 10am. High near 46. Light east wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mixing with snow after 10pm, then gradually ending. Cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. West wind around 11 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 42. Northwest wind 8 to 13 mph, with gusts as high as 24 mph.
Monday Night
Increasing clouds, with a low around 26. Calm wind.
Tuesday
Rain and snow, becoming all rain after 10am. High near 46. Light east wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain likely, mixing with snow after 10pm, then gradually ending. Cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 15.
Friday
Mostly sunny, with a high near 35.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
5:44 pm EST Nov 30, 2025
Forecast Valid:
12am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
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