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

45°F

7°C

Humidity 83%
Wind Speed Calm
Barometer 30.24 in (1023.9 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 27 Apr 11:56 pm EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • Overnight

    Overnight: Clear, with a low around 43. Calm wind.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers, mainly after 2am. Low around 46. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers, mainly before 2pm. High near 56. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 43. Calm wind.
Tuesday
Sunny, with a high near 61. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Light and variable wind.
Wednesday
Mostly sunny, with a high near 59. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Showers, mainly after 2am. Low around 46. Southeast wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly before 2pm. High near 56. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 56.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
5:40 pm EDT Apr 27, 2026
Forecast Valid:
12am EDT Apr 28, 2026-6pm EDT May 4, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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