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

37°F

3°C

Humidity 79%
Wind Speed Calm
Barometer 30.29 in (1025.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 2 Nov 8:56 pm EST
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between 11am and 1pm, then rain likely after 1pm. Increasing clouds, with a high near 61. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Slight Chance
    Showers then
    Rain Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers before 1am. Mostly cloudy during the early evening, then gradual clearing, with a low around 43. Southwest wind 9 to 16 mph becoming northwest after midnight.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 59. Breezy, with a northwest wind 14 to 20 mph.

    High: 59 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. West wind 6 to 10 mph.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. Calm wind.
Monday
A slight chance of showers between 11am and 1pm, then rain likely after 1pm. Increasing clouds, with a high near 61. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 40 percent chance of showers before 1am. Mostly cloudy during the early evening, then gradual clearing, with a low around 43. Southwest wind 9 to 16 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 59. Breezy, with a northwest wind 14 to 20 mph.
Tuesday Night
Mostly clear, with a low around 41. West wind 6 to 10 mph.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 35.
Friday
Partly sunny, with a high near 59.
Friday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.33°N 72.17°W (Elev. 69 ft)
Last Update:
8:21 pm EST Nov 2, 2025
Forecast Valid:
9pm EST Nov 2, 2025-6pm EST Nov 9, 2025
 
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