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

50°F

10°C

Humidity 77%
Wind Speed S 7 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 10 Mar 1:56 pm EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 58. South wind around 7 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 53. Light southeast wind increasing to 5 to 9 mph in the morning.

    High: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 46. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely before 5pm, then rain and snow likely. Mostly cloudy, with a temperature rising to near 49 by 11am, then falling to around 42 during the remainder of the day. Northwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F⇓

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 30 °F

    Snow Likely
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 45.

    High: 45 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 58. South wind around 7 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 38. Light southwest wind.
Wednesday
A 30 percent chance of showers, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 53. Light southeast wind increasing to 5 to 9 mph in the morning.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 46. Southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday
Rain likely before 5pm, then rain and snow likely. Mostly cloudy, with a temperature rising to near 49 by 11am, then falling to around 42 during the remainder of the day. Northwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Snow likely before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 30. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Increasing clouds, with a high near 45.
Friday Night
A 30 percent chance of rain before 2am. Mostly cloudy, with a low around 36.
Saturday
Sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Cloudy, with a high near 49.
Sunday Night
Rain. Low around 42. Chance of precipitation is 80%.
Monday
Rain. High near 53. Chance of precipitation is 90%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
1:57 pm EDT Mar 10, 2026
Forecast Valid:
2pm EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
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Additional Resources

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Chance of Precipitation