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

41°F

5°C

Humidity 86%
Wind Speed S 9 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 13 Jan 9:56 pm EST
Extended Forecast for

Westbrook CT

  • Tonight

    Tonight: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 39. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 46. Southwest wind 6 to 8 mph.

    High: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly after 1am. Cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.

    Low: 31 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 1pm. Partly sunny, with a temperature rising to near 37 by 10am, then falling to around 29 during the remainder of the day. Wind chill values between 20 and 30. West wind 8 to 15 mph.

    High: 37 °F⇓

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 18. Northwest wind around 13 mph.

    Low: 18 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 39. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Wednesday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 46. Southwest wind 6 to 8 mph.
Wednesday Night
A 40 percent chance of rain, mainly after 1am. Cloudy, with a low around 31. Calm wind becoming south around 5 mph after midnight.
Thursday
A 20 percent chance of rain before 1pm. Partly sunny, with a temperature rising to near 37 by 10am, then falling to around 29 during the remainder of the day. Wind chill values between 20 and 30. West wind 8 to 15 mph.
Thursday Night
Mostly clear, with a low around 18. Northwest wind around 13 mph.
Friday
Sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
Partly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 23.
M.L.King Day
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westbrook CT
 41.28°N 72.45°W (Elev. 43 ft)
Last Update:
12:35 pm EST Jan 13, 2026
Forecast Valid:
10pm EST Jan 13, 2026-6pm EST Jan 20, 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