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

51°F

11°C

Humidity 96%
Wind Speed W 6 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 50°F (10°C)
Visibility 8.00 mi
Wind Chill49°F (9°C)
Last update 4 Apr 5:56 am EDT
Extended Forecast for

Niantic CT

  • Today

    Today: Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 58. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 58 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 40. East wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Chance Rain

  • Sunday

    Sunday: Rain and thunderstorms likely, then rain after 2pm. High near 56. Southwest wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Rain Likely
    then Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52. West wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers. Partly sunny, with a high near 49.

    High: 49 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

Detailed Forecast

Today
Areas of dense fog before 9am. Otherwise, mostly sunny, with a high near 58. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
A 40 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 40. East wind 6 to 10 mph, with gusts as high as 22 mph.
Sunday
Rain and thunderstorms likely, then rain after 2pm. High near 56. Southwest wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 52. West wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 49.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 59.
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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:
2:33 am EDT Apr 4, 2026
Forecast Valid:
6am EDT Apr 4, 2026-6pm EDT Apr 10, 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