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

47°F

8°C

Humidity 86%
Wind Speed S 5 mph
Barometer 29.77 in (1008.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 26 Mar 6:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Showers, mainly after 8pm. Steady temperature around 51. South wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 46 by 9am. North wind 9 to 11 mph. Chance of precipitation is 60%.

    High: 49 °F⇓

    Showers
    Likely then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. Northeast wind around 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 9 to 13 mph.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly after 8pm. Steady temperature around 51. South wind 13 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 46 by 9am. North wind 9 to 11 mph. Chance of precipitation is 60%.
Friday Night
Mostly cloudy, with a low around 28. Northeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 40. Wind chill values between 20 and 30. Northwest wind 9 to 13 mph.
Saturday Night
Mostly clear, with a low around 26. Northwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 54.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A 30 percent chance of rain after 8am. Mostly cloudy, with a high near 54.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 59.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 58.
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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:
4:04 pm EDT Mar 26, 2026
Forecast Valid:
7pm EDT Mar 26, 2026-6pm EDT Apr 2, 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