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

29°F

-2°C

Humidity 66%
Wind Speed NW 3 mph
Barometer 30.50 in (1032.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 29 Nov 11:56 pm EST
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Mostly cloudy, with a temperature rising to around 31 by 5am. Calm wind.

    Low: 27 °F⇑

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 50. South wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Slight Chance
    Rain then
    Rain

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 32. West wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 32 °F

    Chance Rain

  • Monday

    Monday: Sunny, with a high near 42. Wind chill values between 25 and 35. Northwest wind 9 to 13 mph.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow after 4am. Increasing clouds, with a low around 24. Light and variable wind.

    Low: 24 °F

    Partly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 7am, then rain. High near 45. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Rain/Snow
    Likely then
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a temperature rising to around 31 by 5am. Calm wind.
Sunday
Rain, mainly after 1pm. High near 50. South wind 6 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of rain, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 32. West wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 42. Wind chill values between 25 and 35. Northwest wind 9 to 13 mph.
Monday Night
A 40 percent chance of snow after 4am. Increasing clouds, with a low around 24. Light and variable wind.
Tuesday
A chance of rain and snow before 7am, then rain. High near 45. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 37.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 24.
Saturday
A 30 percent chance of rain. Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
5:44 pm EST Nov 29, 2025
Forecast Valid:
12am EST Nov 30, 2025-6pm EST Dec 6, 2025
 
Forecast Discussion
 
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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