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

70°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.83 in (1010.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 18 Aug 1:56 am EDT
Extended Forecast for

New London CT

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 69. North wind 3 to 5 mph.

    Low: 69 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming west around 6 mph in the morning.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 83 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. South wind 3 to 7 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 69. North wind 3 to 5 mph.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming west around 6 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 65. West wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68. South wind 3 to 7 mph.
Thursday
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 82.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 79.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 65.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 80.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
4:44 pm EDT Aug 17, 2026
Forecast Valid:
2am EDT Aug 18, 2026-6pm EDT Aug 24, 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