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

33°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 30.31 in (1026.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Jan 8:56 am EST
Extended Forecast for

Westbrook CT

  • Today

    Today: A 20 percent chance of rain after 3pm. Increasing clouds, with a high near 50. South wind 7 to 11 mph.

    High: 50 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Cloudy, with a low around 40. South wind 6 to 9 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: 40 °F

    Rain Likely
    then Cloudy

  • Saturday

    Saturday: Rain likely, mainly after 3pm. Cloudy, with a steady temperature around 42. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 42 °F

    Cloudy then
    Rain Likely

  • Saturday Night

    Saturday Night: Rain. Low around 38. East wind around 6 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of showers after noon. Mostly cloudy, with a high near 44. Light northwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Sunday Night

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

    Low: 30 °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 32.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 3pm. Increasing clouds, with a high near 50. South wind 7 to 11 mph.
Tonight
Rain likely, mainly before 10pm. Cloudy, with a low around 40. South wind 6 to 9 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
Rain likely, mainly after 3pm. Cloudy, with a steady temperature around 42. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 38. East wind around 6 mph becoming north 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. Light northwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westbrook CT
 41.28°N 72.45°W (Elev. 43 ft)
Last Update:
3:06 am EST Jan 9, 2026
Forecast Valid:
9am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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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