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.

Overcast

48°F

9°C

Humidity 71%
Wind Speed S 17 G 30 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 30 Nov 11:56 am EST
Extended Forecast for

2 Miles SSW Preston CT

  • This Afternoon

    This Afternoon: Rain after 1pm. Steady temperature around 47. South wind 11 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain

  • Tonight

    Tonight: Rain likely before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 30. West wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 30 °F

    Rain Likely
    then Partly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 23. Calm wind.

    Low: 23 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 44. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 44 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain before 1am. Cloudy during the early evening, then gradual clearing, with a low around 24.

    Low: 24 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain after 1pm. Steady temperature around 47. South wind 11 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 30. West wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Sunny, with a high near 41. Wind chill values between 20 and 30. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Monday Night
Increasing clouds, with a low around 23. Calm wind.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 44. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday Night
A 50 percent chance of rain before 1am. Cloudy during the early evening, then gradual clearing, with a low around 24.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 31.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Preston CT
 41.53°N 72.01°W (Elev. 200 ft)
Last Update:
6:16 am EST Nov 30, 2025
Forecast Valid:
12pm EST Nov 30, 2025-6pm EST Dec 6, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation