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

39°F

4°C

Humidity 73%
Wind Speed W 7 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Apr 11:56 pm EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

Frost Advisory 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
  •  
    Frost Advisory until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Overnight

    Low: 33 °F

    Frost

  • Monday

    Monday: A 30 percent chance of showers, mainly after noon. Widespread frost before 8am. Otherwise, increasing clouds, with a high near 51. West wind 3 to 8 mph.

    High: 51 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Wind chill values between 20 and 25. North wind 7 to 10 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50. Wind chill values between 20 and 30 early. North wind 5 to 9 mph becoming southwest in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Increasing clouds, with a low around 40. South wind around 9 mph.

    Low: 40 °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 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 33. West wind 5 to 9 mph.
Monday
A 30 percent chance of showers, mainly after noon. Widespread frost before 8am. Otherwise, increasing clouds, with a high near 51. West wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 29. Wind chill values between 20 and 25. North wind 7 to 10 mph.
Tuesday
Sunny, with a high near 50. Wind chill values between 20 and 30 early. North wind 5 to 9 mph becoming southwest in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Increasing clouds, with a low around 40. South wind around 9 mph.
Wednesday
Mostly cloudy, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 57.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 42.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 53.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
6:50 pm EDT Apr 19, 2026
Forecast Valid:
12am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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