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 82%
Wind Speed S 5 mph
Barometer 29.60 in (1002.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 14 Jan 4:56 pm EST
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: A 50 percent chance of rain, mainly between 7pm and 4am. Cloudy, with a steady temperature around 41. South wind 3 to 6 mph.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a temperature rising to near 43 by 10am, then falling to around 35 during the remainder of the day. Southwest wind 6 to 16 mph.

    High: 43 °F⇓

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. Wind chill values between 10 and 20. West wind 13 to 15 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 10 to 16 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a steady temperature around 32. Southwest wind around 8 mph.

    Low: 32 °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 28.

    Low: 28 °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 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly between 7pm and 4am. Cloudy, with a steady temperature around 41. South wind 3 to 6 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a temperature rising to near 43 by 10am, then falling to around 35 during the remainder of the day. Southwest wind 6 to 16 mph.
Thursday Night
Partly cloudy, with a low around 20. Wind chill values between 10 and 20. West wind 13 to 15 mph.
Friday
Sunny, with a high near 36. Wind chill values between 5 and 15. West wind 10 to 16 mph.
Friday Night
Mostly cloudy, with a steady temperature around 32. Southwest wind around 8 mph.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 28.
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 20.
M.L.King Day
Sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 28.
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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:
2:31 pm EST Jan 14, 2026
Forecast Valid:
5pm EST Jan 14, 2026-6pm EST Jan 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation