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

42°F

6°C

Humidity 68%
Wind Speed NW 3 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 20 Apr 7:56 am EDT
Extended Forecast for

New London CT

Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: A 20 percent chance of showers after 10am. Partly sunny, with a high near 52. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 52 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Widespread frost before 4am, then widespread frost after 5am. Otherwise, partly cloudy, with a low around 30. North wind 3 to 5 mph.

    Low: 30 °F

    Partly Cloudy
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 7am. Otherwise, sunny, with a high near 51. Wind chill values between 25 and 35 early. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 51 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 2am. Increasing clouds, with a low around 37. South wind 3 to 5 mph.

    Low: 37 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 54. South wind 6 to 9 mph.

    High: 54 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 10am. Partly sunny, with a high near 52. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Widespread frost before 4am, then widespread frost after 5am. Otherwise, partly cloudy, with a low around 30. North wind 3 to 5 mph.
Tuesday
Widespread frost before 7am. Otherwise, sunny, with a high near 51. Wind chill values between 25 and 35 early. Light and variable wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers after 2am. Increasing clouds, with a low around 37. South wind 3 to 5 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 54. South wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Partly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 57.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 ft)
Last Update:
6:13 am EDT Apr 20, 2026
Forecast Valid:
8am 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