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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles SW Groton CT

Heat Advisory June 24, 04:07am until June 24, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 24, 04:07am until June 24, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Today

    High: 85 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. West wind 3 to 6 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 86. Northwest wind 5 to 7 mph becoming southwest in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind becoming northeast around 5 mph after midnight.

    Low: 67 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny, with a high near 71. East wind 7 to 9 mph. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind becoming southwest 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 73. West wind 3 to 6 mph.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 86. Northwest wind 5 to 7 mph becoming southwest in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind becoming northeast around 5 mph after midnight.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 71. East wind 7 to 9 mph. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 60.
Friday
Mostly cloudy, with a high near 69.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 61.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 72.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Sunday
Partly sunny, with a high near 77.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Groton CT
 41.3°N 72.12°W (Elev. 23 ft)
Last Update:
3:07 am EDT Jun 24, 2025
Forecast Valid:
4am EDT Jun 24, 2025-6pm EDT Jun 30, 2025
 
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