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

66°F

19°C

Humidity 70%
Wind Speed NA
Barometer 29.97 in (1014.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 14 Apr 11:56 am EDT
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a temperature falling to around 67 by 5pm. South wind 5 to 8 mph.

    High: 71 °F⇓

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 52. South wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Light southwest wind. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 69. Calm wind becoming south 5 to 8 mph in the morning.

    High: 69 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a temperature falling to around 67 by 5pm. South wind 5 to 8 mph.
Tonight
Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 52. South wind around 6 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Light southwest wind. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 69. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Mostly cloudy, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 60.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 53.
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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:
10:17 am EDT Apr 14, 2026
Forecast Valid:
12pm EDT Apr 14, 2026-6pm EDT Apr 20, 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