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.

Fair

25°C

77°F

Humidity 94%
Wind Speed S 19 km/h
Barometer 1017.3 mb (30.04 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 15 Jul 4:56 pm EDT
Extended Forecast for

2 Miles ESE Essex CT

Heat Advisory July 16, 11:00am until July 17, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 22. Calm wind.

    Low: 22 °C

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 31. Heat index values as high as 37. Calm wind becoming south 5 to 10 km/h in the afternoon.

    High: 31 °C

    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 22. South wind 3 to 8 km/h.

    Low: 22 °C

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 30. Heat index values as high as 37. Southwest wind 5 to 10 km/h increasing to 11 to 16 km/h in the afternoon. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 30 °C

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 23. Southwest wind 3 to 8 km/h. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 32.

    High: 32 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18.

    Low: 18 °C

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 28.

    High: 28 °C

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 19.

    Low: 19 °C

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 22. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 31. Heat index values as high as 37. Calm wind becoming south 5 to 10 km/h in the afternoon.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 22. South wind 3 to 8 km/h.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 30. Heat index values as high as 37. Southwest wind 5 to 10 km/h increasing to 11 to 16 km/h in the afternoon. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 23. Southwest wind 3 to 8 km/h. Chance of precipitation is 30%.
Friday
Sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny, with a high near 28.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 28.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Essex CT
 41.36°N 72.37°W (Elev. 7 m)
Last Update:
3:16 pm EDT Jul 15, 2025
Forecast Valid:
5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation