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

76°F

24°C

Humidity 82%
Wind Speed S 10 mph
Barometer 29.74 in (1007.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 28 Jul 12:56 pm EDT
Extended Forecast for

Essex CT

Flood Watch July 28, 02:00pm until July 29, 08:00pm
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind around 11 mph, with gusts as high as 21 mph.

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 66. Southeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 76. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers likely after 11pm. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 78. North wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Thursday Night

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

    Low: 63 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers after 2pm. Partly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. South wind around 11 mph, with gusts as high as 21 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 66. Southeast wind 8 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 76. Southeast wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then showers likely after 11pm. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 78. North wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 63.
Friday
A 40 percent chance of showers after 2pm. Partly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 82.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Essex CT
 41.34°N 72.41°W (Elev. 98 ft)
Last Update:
2:31 am EDT Jul 28, 2026
Forecast Valid:
1pm EDT Jul 28, 2026-6pm EDT Aug 3, 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