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

57°F

14°C

Humidity 90%
Wind Speed SW 5 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 27 May 2:56 am EDT
Extended Forecast for

Stonington CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 58. Southwest wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 74. Southwest wind 6 to 10 mph.

    High: 74 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. Southwest wind around 5 mph becoming light and variable.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 2pm. Increasing clouds, with a high near 74. North wind 6 to 8 mph.

    High: 74 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 68.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 58. Southwest wind around 5 mph.
Wednesday
Mostly cloudy, with a high near 74. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 60. Southwest wind around 5 mph becoming light and variable.
Thursday
A 30 percent chance of showers after 2pm. Increasing clouds, with a high near 74. North wind 6 to 8 mph.
Thursday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 54. Calm wind.
Friday
Mostly sunny, with a high near 70.
Friday Night
A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 54.
Saturday
A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 51.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stonington CT
 41.35°N 71.93°W (Elev. 3 ft)
Last Update:
2:27 am EDT May 27, 2026
Forecast Valid:
3am EDT May 27, 2026-6pm EDT Jun 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