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.

Light Rain

60°F

16°C

Humidity 90%
Wind Speed N 8 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 1 Apr 6:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 40. Calm wind becoming northeast 5 to 8 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 8am. High near 45. Northeast wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 2am. Cloudy, with a low around 38. East wind 5 to 7 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 56. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. Southwest wind 5 to 7 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly after 2pm. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 40. Calm wind becoming northeast 5 to 8 mph in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, mainly before 8am. High near 45. Northeast wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers before 2am. Cloudy, with a low around 38. East wind 5 to 7 mph.
Friday
Mostly cloudy, with a high near 56. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 50. Southwest wind 5 to 7 mph.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Showers, mainly after 2pm. High near 58. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 8pm. Low around 39. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Sunny, with a high near 47.
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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:
2:31 pm EDT Apr 1, 2026
Forecast Valid:
7pm EDT Apr 1, 2026-6pm EDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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