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.

A Few Clouds

38°F

3°C

Humidity 86%
Wind Speed SW 3 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 14 Mar 1:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Partly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 14 to 18 mph, with gusts as high as 38 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 29. West wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 21 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely after 2am. Mostly cloudy, with a low around 35. Southeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain. High near 57. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 57 °F

    Rain

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm. Low around 37. Breezy. Chance of precipitation is 100%.

    Low: 37 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain likely before 8am. Mostly sunny, with a high near 46. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 48. West wind 14 to 18 mph, with gusts as high as 38 mph.
Saturday Night
Increasing clouds, with a low around 29. West wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 21 mph.
Sunday
Mostly cloudy, with a high near 45. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Sunday Night
Rain likely after 2am. Mostly cloudy, with a low around 35. Southeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain. High near 57. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday Night
Rain and possibly a thunderstorm. Low around 37. Breezy. Chance of precipitation is 100%.
Tuesday
Rain likely before 8am. Mostly sunny, with a high near 46. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 47.
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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:
9:14 pm EDT Mar 13, 2026
Forecast Valid:
2am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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