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

38°F

3°C

Humidity 62%
Wind Speed NW 7 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 15 Nov 12:56 am EST
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 29. Northwest wind around 5 mph.

    Low: 29 °F

    Areas Frost

  • Saturday

    Saturday: Areas of frost between 8am and 9am. Otherwise, increasing clouds, with a high near 55. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 55 °F

    Areas Frost
    then
    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Showers, mainly before 4am. Temperature rising to around 52 by 2am. Southwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 44 °F⇑

    Showers

  • Sunday

    Sunday: Partly sunny, with a temperature rising to near 54 by 10am, then falling to around 46 during the remainder of the day. West wind 10 to 17 mph, with gusts as high as 31 mph.

    High: 54 °F⇓

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. West wind 11 to 15 mph, with gusts as high as 33 mph.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 29. Northwest wind around 5 mph.
Saturday
Areas of frost between 8am and 9am. Otherwise, increasing clouds, with a high near 55. Light and variable wind becoming west 5 to 7 mph in the morning.
Saturday Night
Showers, mainly before 4am. Temperature rising to around 52 by 2am. Southwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Partly sunny, with a temperature rising to near 54 by 10am, then falling to around 46 during the remainder of the day. West wind 10 to 17 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 32. West wind 11 to 15 mph, with gusts as high as 33 mph.
Monday
Mostly sunny, with a high near 45.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 50.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
1:00 am EST Nov 15, 2025
Forecast Valid:
1am EST Nov 15, 2025-6pm EST Nov 21, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation