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

46°F

8°C

Humidity 77%
Wind Speed N 5 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 6 Oct 8:56 pm EDT
Extended Forecast for

3 Miles SSE Yantic CT

Frost Advisory October 6, 11:00pm until October 7, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear then
    Frost

  • Wednesday

    Wednesday: Widespread frost before 9am. Otherwise, sunny, with a high near 64. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 64 °F

    Frost then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. Southwest wind around 7 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Southwest wind 6 to 9 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Light northwest wind.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 33. Calm wind.
Wednesday
Widespread frost before 9am. Otherwise, sunny, with a high near 64. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 53. Southwest wind around 7 mph.
Thursday
Sunny, with a high near 73. Southwest wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 48. Light northwest wind.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56.
Columbus Day
A 40 percent chance of showers. Mostly cloudy, with a high near 69.
Monday Night
Mostly cloudy, with a low around 55.
Tuesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Yantic CT
 41.49°N 72.02°W (Elev. 98 ft)
Last Update:
5:36 pm EDT Oct 6, 2026
Forecast Valid:
9pm EDT Oct 6, 2026-6pm EDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation