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.

Mostly Cloudy

64°F

18°C

Humidity 81%
Wind Speed S 7 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 11:56 am EDT
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Isolated showers, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a temperature falling to around 65 by 5pm. Light and variable wind. Chance of precipitation is 50%.

    High: 71 °F⇓

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers before 8pm. Partly cloudy, with a low around 48. Calm wind. Chance of precipitation is 30%.

    Low: 48 °F

    Scattered
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 61. East wind 3 to 6 mph.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 46. Light southeast wind.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 57. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 36. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers, then scattered showers and thunderstorms after 2pm. Mostly cloudy, with a temperature falling to around 65 by 5pm. Light and variable wind. Chance of precipitation is 50%.
Tonight
Scattered showers before 8pm. Partly cloudy, with a low around 48. Calm wind. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 61. East wind 3 to 6 mph.
Saturday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 46. Light southeast wind.
Sunday
Showers, mainly after 8am. High near 57. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers, mainly before 8pm. Low around 36. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 63.
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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:
12:33 pm EDT Apr 17, 2026
Forecast Valid:
12pm EDT Apr 17, 2026-6pm EDT Apr 23, 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