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

62°F

17°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 62°F (17°C)
Visibility 0.25 mi
Last update 24 Jun 1:56 am EDT
Extended Forecast for

New London CT

  • Overnight

    Overnight: Patchy fog before 3am. Otherwise, mostly cloudy early, then becoming mostly clear, with a low around 59. Light north wind.

    Low: 59 °F

    Patchy Fog

  • Wednesday

    Wednesday: Sunny, with a high near 80. West wind 7 to 10 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. South wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Partly sunny, with a high near 77. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 77 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before 2pm. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog before 3am. Otherwise, mostly cloudy early, then becoming mostly clear, with a low around 59. Light north wind.
Wednesday
Sunny, with a high near 80. West wind 7 to 10 mph.
Wednesday Night
Mostly clear, with a low around 59. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Thursday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. South wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 77. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 64.
Saturday
A 50 percent chance of showers before 2pm. Partly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.37°N 72.11°W (Elev. 125 ft)
Last Update:
2:37 am EDT Jun 24, 2026
Forecast Valid:
2am EDT Jun 24, 2026-6pm EDT Jun 30, 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