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

62°F

17°C

Humidity 65%
Wind Speed N 12 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 May 7:56 am EDT
Extended Forecast for

Niantic CT

  • Today

    Today: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 67. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 67 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Northeast wind 8 to 10 mph becoming southeast in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 64. East wind 6 to 10 mph.

    High: 64 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after 8pm. Low around 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers. High near 65. Breezy. Chance of precipitation is 90%.

    High: 65 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 73.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 67. Northeast wind around 6 mph becoming light and variable in the afternoon.
Tonight
Mostly cloudy, with a low around 50. Calm wind.
Friday
Mostly sunny, with a high near 69. Northeast wind 8 to 10 mph becoming southeast in the afternoon.
Friday Night
Increasing clouds, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers, mainly after 2pm. Cloudy, with a high near 64. East wind 6 to 10 mph.
Saturday Night
Showers, mainly after 8pm. Low around 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers. High near 65. Breezy. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 73.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
2:19 am EDT May 21, 2026
Forecast Valid:
8am EDT May 21, 2026-6pm EDT May 27, 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