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

42°F

6°C

Humidity 89%
Wind Speed Calm
Barometer 29.57 in (1001.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 14 Jan 6:56 pm EST
Extended Forecast for

2 Miles SSW Niantic CT

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 39. South wind 5 to 7 mph.

    Low: 39 °F

    Chance Rain

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a temperature rising to near 43 by 11am, then falling to around 35 during the remainder of the day. Southwest wind 7 to 17 mph.

    High: 43 °F⇓

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21. Wind chill values between 5 and 15. West wind 15 to 17 mph.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 11 to 17 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a temperature rising to around 34 by 4am. Southwest wind 9 to 11 mph.

    Low: 31 °F⇑

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 41.

    High: 41 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Partly Sunny
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before 1am. Partly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before 4am. Cloudy, with a low around 39. South wind 5 to 7 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a temperature rising to near 43 by 11am, then falling to around 35 during the remainder of the day. Southwest wind 7 to 17 mph.
Thursday Night
Partly cloudy, with a low around 21. Wind chill values between 5 and 15. West wind 15 to 17 mph.
Friday
Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 11 to 17 mph.
Friday Night
Mostly cloudy, with a temperature rising to around 34 by 4am. Southwest wind 9 to 11 mph.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 36.
Sunday Night
A 30 percent chance of snow before 1am. Partly cloudy, with a low around 22.
M.L.King Day
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 16.
Wednesday
Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
2:31 pm EST Jan 14, 2026
Forecast Valid:
7pm EST Jan 14, 2026-6pm EST Jan 21, 2026
 
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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