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.

Partly Cloudy

62°F

17°C

Humidity 80%
Wind Speed Calm
Barometer 29.87 in (1011.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 16 Apr 1:56 am EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 53. Light south wind.

    Low: 53 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Light southwest wind becoming south 5 to 9 mph in the morning.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 53. Southwest wind 3 to 7 mph.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 69. West wind 3 to 6 mph. Chance of precipitation is 50%.

    High: 69 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Northeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 53. Light south wind.
Thursday
Mostly sunny, with a high near 70. Light southwest wind becoming south 5 to 9 mph in the morning.
Thursday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 53. Southwest wind 3 to 7 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 69. West wind 3 to 6 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 50. Northeast wind around 5 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 46.
Sunday
Showers likely after 8am. Cloudy, with a high near 57. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
7:26 pm EDT Apr 15, 2026
Forecast Valid:
2am EDT Apr 16, 2026-6pm EDT Apr 22, 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