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

47°F

8°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 29 Apr 11:56 pm EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: A slight chance of sprinkles before 2am, then showers after 2am. Low around 46. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 2pm. High near 59. Light and variable wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 43. Northwest wind 5 to 7 mph.

    Low: 43 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 61. Northwest wind 7 to 10 mph becoming west in the afternoon.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 42. Light west wind.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 57.

    High: 57 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of sprinkles before 2am, then showers after 2am. Low around 46. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers, mainly before 2pm. High near 59. Light and variable wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 43. Northwest wind 5 to 7 mph.
Friday
Sunny, with a high near 61. Northwest wind 7 to 10 mph becoming west in the afternoon.
Friday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 42. Light west wind.
Saturday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 57.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 62.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 48.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 64.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
7:43 pm EDT Apr 29, 2026
Forecast Valid:
12am EDT Apr 30, 2026-6pm EDT May 6, 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