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

72°F

22°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 1 Jul 8:56 pm EDT
Extended Forecast for

Westbrook CT

Extreme Heat Watch July 3, 09:00pm until July 4, 09:00pm
Extreme Heat Warning July 1, 09:43pm until July 3, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning
  •  
    Extreme Heat Warning July 1, 09:43pm until July 3, 09:00pm

    NOW until 9:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 72 °F

    Isolated
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, sunny, with a high near 93. Heat index values as high as 110. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Southwest wind around 6 mph becoming calm after midnight.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 94. Heat index values as high as 109. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Light northwest wind.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Tonight
Isolated showers and thunderstorms. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 72. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 93. Heat index values as high as 110. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 73. Southwest wind around 6 mph becoming calm after midnight.
Friday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 94. Heat index values as high as 109. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 73. Light northwest wind.
Independence Day
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 83.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 68.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westbrook CT
 41.3°N 72.45°W (Elev. 62 ft)
Last Update:
8:17 pm EDT Jul 1, 2026
Forecast Valid:
9pm EDT Jul 1, 2026-6pm EDT Jul 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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