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

68°F

20°C

Humidity 90%
Wind Speed E 7 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 5 Sep 5:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 11am. Mostly sunny, with a high near 72. North wind around 6 mph.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 78. Northwest wind 5 to 8 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. West wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Light northeast wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of showers, mainly before 11am. Mostly sunny, with a high near 72. North wind around 6 mph.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Labor Day
Sunny, with a high near 78. Northwest wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 56. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers before 8am. Mostly sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 72.
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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:
4:05 pm EDT Sep 5, 2026
Forecast Valid:
6pm EDT Sep 5, 2026-6pm EDT Sep 12, 2026
 
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