National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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 34%
Wind Speed N 3 mph
Barometer 30.18 in (1021.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Nov 12:56 pm EST
Extended Forecast for

2 Miles W Hadlyme CT

  • This Afternoon

    This Afternoon: Partly sunny, then gradually becoming sunny, with a high near 46. Light northwest wind.

    High: 46 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Widespread frost after 10pm. Otherwise, mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Frost

  • Friday

    Friday: Widespread frost before 8am. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 51 °F

    Frost then
    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Chance Rain
    and Patchy
    Fog

  • Saturday

    Saturday: A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 6 to 10 mph.

    High: 49 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, then gradually becoming sunny, with a high near 46. Light northwest wind.
Tonight
Widespread frost after 10pm. Otherwise, mostly clear, with a low around 32. Calm wind.
Friday
Widespread frost before 8am. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
A 30 percent chance of rain, mainly after 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
A 30 percent chance of rain. Cloudy, with a high near 52.
Tuesday Night
Rain. Low around 45. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Hadlyme CT
 41.4°N 72.36°W (Elev. 279 ft)
Last Update:
12:38 pm EST Nov 20, 2025
Forecast Valid:
1pm EST Nov 20, 2025-6pm EST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation