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.

Light Rain

38°F

3°C

Humidity 89%
Wind Speed NE 15 G 25 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Wind Chill29°F (-2°C)
Last update 6 Mar 1:56 am EST
Extended Forecast for

Groton / New London Airport CT

  • Overnight

    Overnight: Rain, mainly before 4am. Steady temperature around 36. Northeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly before 7am. Patchy fog before 8am. Otherwise, cloudy, with a high near 40. Northeast wind 10 to 13 mph.

    High: 40 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: A slight chance of drizzle after 4am. Patchy fog after 3am. Otherwise, cloudy, with a low around 32. Northeast wind 3 to 8 mph.

    Low: 32 °F

    Cloudy then
    Slight Chance
    Drizzle and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, cloudy, with a high near 46. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 46 °F

    Patchy Fog
    then Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 46 by 3am. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 43 °F⇑

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 53.

    High: 53 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain, mainly before 4am. Steady temperature around 36. Northeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 30 percent chance of rain, mainly before 7am. Patchy fog before 8am. Otherwise, cloudy, with a high near 40. Northeast wind 10 to 13 mph.
Friday Night
A slight chance of drizzle after 4am. Patchy fog after 3am. Otherwise, cloudy, with a low around 32. Northeast wind 3 to 8 mph.
Saturday
Patchy fog before 7am. Otherwise, cloudy, with a high near 46. Calm wind becoming southwest 5 to 9 mph in the morning.
Saturday Night
Showers likely, mainly after 1am. Cloudy, with a temperature rising to around 46 by 3am. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 53.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
1:11 am EST Mar 6, 2026
Forecast Valid:
2am EST Mar 6, 2026-6pm EDT Mar 12, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation