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.

Fog/Mist

56°F

13°C

Humidity 100%
Wind Speed NE 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 56°F (13°C)
Visibility 2.00 mi
Last update 25 May 4:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Showers likely. Areas of fog. Otherwise, cloudy, with a steady temperature around 57. Calm wind. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely and
    Areas Fog

  • Memorial Day

    Memorial Day: Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm. Areas of fog before 11am. High near 70. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers and
    Areas Fog

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Light southwest wind.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Showers likely. Areas of fog. Otherwise, cloudy, with a steady temperature around 57. Calm wind. Chance of precipitation is 60%.
Memorial Day
Showers before 11am, then showers and possibly a thunderstorm between 11am and 2pm. Areas of fog before 11am. High near 70. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Mostly cloudy, with a low around 59. Calm wind.
Tuesday
Mostly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 61. Light southwest wind.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 70.
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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:
4:11 am EDT May 25, 2026
Forecast Valid:
5am EDT May 25, 2026-6pm EDT May 31, 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