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

49°F

9°C

Humidity 74%
Wind Speed W 6 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 Nov 6:56 pm EST
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Showers likely, mainly after 4am. Mostly cloudy, with a low around 39. Light west wind. Chance of precipitation is 60%.

    Low: 39 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers likely before 10am, then a chance of rain between 10am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 51. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 51 °F

    Showers
    Likely then
    Chance Rain

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm after midnight.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 48. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 48 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. West wind around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 35.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Rain Likely

Detailed Forecast

Tonight
Showers likely, mainly after 4am. Mostly cloudy, with a low around 39. Light west wind. Chance of precipitation is 60%.
Saturday
Showers likely before 10am, then a chance of rain between 10am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 51. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm after midnight.
Sunday
Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 48. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 36. West wind around 6 mph.
Monday
Sunny, with a high near 50.
Monday Night
Increasing clouds, with a low around 35.
Tuesday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 54.
Tuesday Night
Rain likely. Cloudy, with a low around 46. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 58.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40.
Thanksgiving Day
A 30 percent chance of rain. Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 44.
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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:
3:11 pm EST Nov 21, 2025
Forecast Valid:
7pm EST Nov 21, 2025-6pm EST Nov 28, 2025
 
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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