National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

61°F

16°C

Humidity 87%
Wind Speed N 7 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Aug 3:56 am EDT
Extended Forecast for

Westbrook CT

  • Today

    Today: Mostly sunny, with a high near 81. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 5am. Low around 66. South wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 11am, then a chance of showers. High near 81. Southeast wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

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

    High: 82 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 81. Calm wind becoming south 5 to 8 mph in the afternoon.
Tonight
Showers, with thunderstorms also possible after 5am. Low around 66. South wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm before 11am, then a chance of showers. High near 81. Southeast wind 6 to 10 mph becoming north in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Partly cloudy, with a low around 65. Calm wind.
Tuesday
Sunny, with a high near 83. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 84.
Wednesday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 62.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 79.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westbrook CT
 41.3°N 72.45°W (Elev. 62 ft)
Last Update:
2:19 am EDT Aug 16, 2026
Forecast Valid:
4am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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