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.

Rain Fog/Mist

67°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 30.03 in (1016.9 mb)
Dewpoint 65°F (18°C)
Visibility 2.00 mi
Last update 22 Jun 4:56 pm EDT
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Showers. Steady temperature around 73. Southeast wind around 6 mph. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 8pm. Low around 62. South wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 76. Light and variable wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 61. Light northwest wind.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 84. West wind 3 to 7 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 2am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers before 2pm. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers. Steady temperature around 73. Southeast wind around 6 mph. Chance of precipitation is 80%.
Tonight
Showers, with thunderstorms also possible after 8pm. Low around 62. South wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers and possibly a thunderstorm before 2pm, then a chance of showers. High near 76. Light and variable wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 61. Light northwest wind.
Wednesday
Sunny, with a high near 84. West wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 82.
Thursday Night
A 50 percent chance of showers after 2am. Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers before 2pm. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 65.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 64.
Monday
Mostly sunny, with a high near 84.
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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:
2:30 pm EDT Jun 22, 2026
Forecast Valid:
5pm EDT Jun 22, 2026-6pm EDT Jun 29, 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