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.

Light Rain

41°F

5°C

Humidity 82%
Wind Speed NW 16 G 23 mph
Barometer 29.90 in (1012.4 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 19 Apr 5:56 pm EDT
Extended Forecast for

New London CT

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

  • Tonight

    Tonight: A 30 percent chance of showers before 7pm. Widespread frost, mainly after 4am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 12 to 17 mph becoming light west after midnight.

    Low: 33 °F

    Chance
    Showers then
    Frost

  • Monday

    Monday: A 30 percent chance of showers, mainly after noon. Widespread frost before 8am. Otherwise, increasing clouds, with a high near 51. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 51 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Widespread frost after 2am. Otherwise, partly cloudy, with a low around 29. North wind 3 to 6 mph.

    Low: 29 °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 5 to 7 mph in the afternoon.

    High: 51 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Increasing clouds, with a low around 38. South wind around 5 mph.

    Low: 38 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers before 7pm. Widespread frost, mainly after 4am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 33. Northwest wind 12 to 17 mph becoming light west after midnight.
Monday
A 30 percent chance of showers, mainly after noon. Widespread frost before 8am. Otherwise, increasing clouds, with a high near 51. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 29. North wind 3 to 6 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 5 to 7 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Increasing clouds, with a low around 38. South wind around 5 mph.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 61.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 41.
Saturday
A 40 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 42.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 59.
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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:
2:18 pm EDT Apr 19, 2026
Forecast Valid:
6pm EDT Apr 19, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation