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.

A Few Clouds

82°F

28°C

Humidity 47%
Wind Speed NW 6 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 12 Aug 1:56 pm EDT
Extended Forecast for

New London CT

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. Southwest wind around 6 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the morning.

    High: 83 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 8pm. Mostly cloudy during the early evening, then becoming clear, with a low around 65. Calm wind.

    Low: 65 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

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

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 85. Southwest wind around 6 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 69. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 83. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night
A 30 percent chance of showers before 8pm. Mostly cloudy during the early evening, then becoming clear, with a low around 65. Calm wind.
Friday
Mostly sunny, with a high near 81. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 60.
Sunday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 81.
Sunday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 ft)
Last Update:
2:24 am EDT Aug 12, 2026
Forecast Valid:
2pm EDT Aug 12, 2026-6pm EDT Aug 18, 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