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.

Fog

77°F

25°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 75°F (24°C)
Visibility 0.25 mi
Heat Index78°F (26°C)
Last update 16 Jul 9:56 am EDT
Extended Forecast for

Centerbrook CT

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

  • Today

    Today: Sunny, with a high near 88. Heat index values as high as 96. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Heat index values as high as 97. Southwest wind 5 to 10 mph.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. Southwest wind around 6 mph.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 87. Northwest wind 6 to 8 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 88. Heat index values as high as 96. Calm wind becoming south 5 to 7 mph in the afternoon.
Tonight
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Heat index values as high as 97. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 74. Southwest wind around 6 mph.
Friday
Sunny, with a high near 87. Northwest wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 67.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 82.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Centerbrook CT
 41.34°N 72.41°W (Elev. 98 ft)
Last Update:
6:04 am EDT Jul 16, 2025
Forecast Valid:
10am EDT Jul 16, 2025-6pm EDT Jul 22, 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