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.

Overcast

45°F

7°C

Humidity 83%
Wind Speed S 8 mph
Barometer 30.22 in (1023.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Jan 12:56 pm EST
Extended Forecast for

Westbrook CT

  • This Afternoon

    This Afternoon: Isolated showers after 4pm. Mostly cloudy, with a high near 52. South wind around 10 mph. Chance of precipitation is 20%.

    High: 52 °F

    Isolated
    Showers

  • Tonight

    Tonight: Showers likely, mainly between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 37. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly after 4pm. High near 45. Light and variable wind becoming northeast around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Partly Sunny
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 36. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. West wind 5 to 13 mph.

    High: 44 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °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

  • Tuesday

    Tuesday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers after 4pm. Mostly cloudy, with a high near 52. South wind around 10 mph. Chance of precipitation is 20%.
Tonight
Showers likely, mainly between 8pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 37. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 4pm. High near 45. Light and variable wind becoming northeast around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Low around 36. East wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 40 percent chance of rain, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. West wind 5 to 13 mph.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
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 72.47°W (Elev. 98 ft)
Last Update:
1:01 pm EST Jan 9, 2026
Forecast Valid:
1pm EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation