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.

Overcast

46°F

8°C

Humidity 96%
Wind Speed S 5 mph
Barometer 29.58 in (1001.6 mb)
Dewpoint 45°F (7°C)
Visibility 8.00 mi
Wind Chill44°F (7°C)
Last update 12 Mar 3:56 am EDT
Extended Forecast for

2 Miles SE Old Lyme CT

  • Overnight

    Overnight: Rain likely, mainly before 5am. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 45. South wind around 8 mph. Chance of precipitation is 60%.

    Low: 45 °F

    Rain Likely
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely before 4pm, then rain and snow. Patchy fog before 9am. Temperature rising to near 46 by noon, then falling to around 39 during the remainder of the day. Northwest wind 10 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F⇓

    Rain Likely
    and Patchy
    Fog then
    Rain/Snow

  • Thursday Night

    Thursday Night: Snow, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Low around 29. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Increasing clouds, with a high near 43. Wind chill values between 25 and 35. West wind 5 to 13 mph becoming south in the afternoon.

    High: 43 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind 11 to 13 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, with a high near 45.

    High: 45 °F

    Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Overnight
Rain likely, mainly before 5am. Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 45. South wind around 8 mph. Chance of precipitation is 60%.
Thursday
Rain likely before 4pm, then rain and snow. Patchy fog before 9am. Temperature rising to near 46 by noon, then falling to around 39 during the remainder of the day. Northwest wind 10 to 16 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Snow, possibly mixed with rain, becoming all snow after 7pm, then gradually ending. Low around 29. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Increasing clouds, with a high near 43. Wind chill values between 25 and 35. West wind 5 to 13 mph becoming south in the afternoon.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. South wind 11 to 13 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 48.
Saturday Night
Increasing clouds, with a low around 30.
Sunday
Cloudy, with a high near 45.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 38. Chance of precipitation is 70%.
Monday
Rain. High near 56. Chance of precipitation is 90%.
Monday Night
Rain likely. Cloudy, with a low around 33. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain. Mostly sunny, with a high near 42.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Old Lyme CT
 41.28°N 72.3°W (Elev. 0 ft)
Last Update:
2:50 am EDT Mar 12, 2026
Forecast Valid:
4am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
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Additional Resources

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Chance of Precipitation