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

46°F

8°C

Humidity 79%
Wind Speed S 8 mph
Barometer 30.26 in (1024.5 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 9 Jan 11:56 am EST
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 51. South wind around 9 mph.

    High: 51 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, with a low around 39. South wind 5 to 7 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Showers
    Likely then
    Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 46 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 37. East wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Sunday Night

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

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 51. South wind around 9 mph.
Tonight
Showers likely, mainly before 10pm. Cloudy, with a low around 39. South wind 5 to 7 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Rain. Low around 37. East wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. West wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 39.
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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:
9:16 am EST Jan 9, 2026
Forecast Valid:
12pm EST Jan 9, 2026-6pm EST Jan 15, 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