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.

Overcast

37°F

3°C

Humidity 65%
Wind Speed SE 9 mph
Barometer 30.31 in (1026.2 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 19 Mar 11:56 am EDT
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 42. South wind around 6 mph.

    High: 42 °F

    Sunny

  • Tonight

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

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely. Mostly cloudy, with a low around 39. Southwest wind around 7 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain Likely

  • Saturday

    Saturday: Partly sunny, with a high near 54. West wind 6 to 8 mph.

    High: 54 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 2am, then rain and snow likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Rain and snow likely, mainly before 8am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 42. South wind around 6 mph.
Tonight
Partly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 48. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
Rain likely. Mostly cloudy, with a low around 39. Southwest wind around 7 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Partly sunny, with a high near 54. West wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.
Sunday Night
A chance of rain before 2am, then rain and snow likely. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Monday
Rain and snow likely, mainly before 8am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
2:26 am EDT Mar 19, 2026
Forecast Valid:
12pm EDT Mar 19, 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