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

26°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 30.33 in (1027.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 9 Jan 1:56 am EST
Extended Forecast for

Westbrook CT

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 33. Calm wind becoming east around 5 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of rain after 3pm. Increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the morning.

    High: 52 °F

    Mostly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 10pm. Cloudy, with a low around 39. South wind around 6 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    then Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.

    High: 46 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain. Low around 37. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 33. Calm wind becoming east around 5 mph.
Friday
A 40 percent chance of rain after 3pm. Increasing clouds, with a high near 52. Calm wind becoming south 5 to 9 mph in the morning.
Friday Night
Rain likely, mainly before 10pm. Cloudy, with a low around 39. South wind around 6 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 50 percent chance of rain after noon. Cloudy, with a high near 46. Calm wind becoming northeast around 5 mph.
Saturday Night
Rain. Low around 37. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westbrook CT
 41.3°N 72.45°W (Elev. 62 ft)
Last Update:
1:19 am EST Jan 9, 2026
Forecast Valid:
2am EST Jan 9, 2026-6pm EST Jan 15, 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