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

54°F

12°C

Humidity 87%
Wind Speed W 5 mph
Barometer 30.27 in (1025.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 3 Nov 2:56 am EST
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 54. Southwest wind around 7 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 68. Southwest wind 6 to 11 mph.

    High: 68 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Southwest wind 3 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. Southwest wind 3 to 8 mph.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Light southwest wind.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers likely, mainly after 3am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 70. Chance of precipitation is 80%.

    High: 70 °F

    Heavy Rain

  • Friday Night

    Friday Night: Rain. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 54. Southwest wind around 7 mph.
Tuesday
Increasing clouds, with a high near 68. Southwest wind 6 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 50. Southwest wind 3 to 7 mph.
Wednesday
Mostly sunny, with a high near 70. Southwest wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 53. Light southwest wind.
Thursday
Mostly cloudy, with a high near 71.
Thursday Night
Showers likely, mainly after 3am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 70. Chance of precipitation is 80%.
Friday Night
Rain. Low around 56. Chance of precipitation is 80%.
Saturday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 46.
Monday
A 40 percent chance of rain. Partly sunny, with a high near 60.
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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:
2:26 am EST Nov 3, 2026
Forecast Valid:
3am EST Nov 3, 2026-6pm EST Nov 9, 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