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

32°F

0°C

Humidity 45%
Wind Speed SW 12 mph
Barometer 30.41 in (1029.5 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 18 Mar 5:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Mostly clear, with a low around 25. South wind 5 to 9 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 41. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 49. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 49 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: A 30 percent chance of rain before noon. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 25. South wind 5 to 9 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 41. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 49. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. South wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 30 percent chance of rain before noon. Partly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 53.
Sunday Night
A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 46.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
5:35 pm EDT Mar 18, 2026
Forecast Valid:
6pm EDT Mar 18, 2026-6pm EDT Mar 25, 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