National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

36°F

2°C

Humidity 79%
Wind Speed W 7 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 20 Apr 4:56 am EDT
Extended Forecast for

Westbrook CT

Frost Advisory April 20, 05:50am until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory April 20, 05:50am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 50 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Northwest wind around 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48. North wind around 6 mph becoming calm.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Increasing clouds, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 51. South wind around 8 mph.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers after 8am. Increasing clouds, with a high near 50. Calm wind becoming west around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 32. Northwest wind around 6 mph.
Tuesday
Sunny, with a high near 48. North wind around 6 mph becoming calm.
Tuesday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 41. South wind around 6 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 51. South wind around 8 mph.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 54.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 43.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 55.
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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:
2:20 am EDT Apr 20, 2026
Forecast Valid:
5am EDT Apr 20, 2026-6pm EDT Apr 26, 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