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

70°F

21°C

Humidity 68%
Wind Speed SW 9 mph
Barometer 30.15 in (1020.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 2:56 pm EDT
Extended Forecast for

Groton / New London Airport CT

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 4am. Otherwise, clear, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 53 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Light southwest wind.

    Low: 52 °F

    Patchy Fog

  • Monday

    Monday: Sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Southwest wind 7 to 9 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 2am, then patchy fog after 4am. Otherwise, clear, with a low around 53. Southwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Light southwest wind.
Monday
Sunny, with a high near 72. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 57. Southwest wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Wednesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 43.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 65.
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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:
2:02 pm EDT Oct 4, 2025
Forecast Valid:
3pm EDT Oct 4, 2025-6pm EDT Oct 11, 2025
 
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Additional Resources

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