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

45°F

7°C

Humidity 68%
Wind Speed SW 12 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 20 Mar 4:56 pm EDT
Extended Forecast for

Westbrook CT

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Cloudy, with a high near 48. South wind around 17 mph.

    High: 48 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers, mainly before 2am. Patchy fog after 3am. Low around 40. Southwest wind 7 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Showers then
    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 53. Northwest wind 9 to 11 mph.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 38. Calm wind.

    Low: 38 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 51. South wind 5 to 10 mph.

    High: 51 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 37. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain Likely

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Cloudy, with a high near 48. South wind around 17 mph.
Tonight
Showers, mainly before 2am. Patchy fog after 3am. Low around 40. Southwest wind 7 to 14 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 53. Northwest wind 9 to 11 mph.
Saturday Night
Increasing clouds, with a low around 38. Calm wind.
Sunday
A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 51. South wind 5 to 10 mph.
Sunday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 37. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 45.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Friday
A chance of rain. Mostly cloudy, with a high near 48.
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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:
3:15 pm EDT Mar 20, 2026
Forecast Valid:
5pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation