National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Partly Cloudy

77°F

25°C

Humidity 100%
Wind Speed SW 9 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Jul 11:56 am EDT
Extended Forecast for

New London CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. South wind around 8 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. South wind around 6 mph becoming calm in the evening.

    Low: 70 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming south 5 to 9 mph in the morning.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 73. South wind 3 to 7 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Southwest wind 6 to 11 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. South wind around 8 mph.
Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. South wind around 6 mph becoming calm in the evening.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 73. South wind 3 to 7 mph.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Southwest wind 6 to 11 mph.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 68.
Monday
Partly 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:
6:03 am EDT Jul 15, 2025
Forecast Valid:
12pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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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