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

42°F

6°C

Humidity 76%
Wind Speed SW 7 mph
Barometer 30.23 in (1023.6 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 4 Mar 1:56 pm EST
Extended Forecast for

Conning Towers-Nautilus Park CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 46. Light south wind.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 20%.

    Low: 29 °F

    Patchy Fog
    then Slight
    Chance
    Freezing Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely, possibly mixed with freezing rain, becoming all rain after 7am. Patchy fog before 1pm. Otherwise, cloudy, with a high near 41. Calm wind becoming northeast 5 to 9 mph in the afternoon. Chance of precipitation is 70%. Little or no ice accumulation expected.

    High: 41 °F

    Rain/Freezing
    Rain Likely
    and Patchy
    Fog

  • Thursday Night

    Thursday Night: Rain. Low around 35. Northeast wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 35 °F

    Rain

  • Friday

    Friday: A 40 percent chance of rain before 1pm. Cloudy, with a high near 40. Northeast wind 10 to 14 mph.

    High: 40 °F

    Chance Rain

  • Friday Night

    Friday Night: Cloudy, with a low around 36.

    Low: 36 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 50.

    High: 50 °F

    Cloudy

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 46. Light south wind.
Tonight
A slight chance of freezing rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 29. Calm wind. Chance of precipitation is 20%.
Thursday
Rain likely, possibly mixed with freezing rain, becoming all rain after 7am. Patchy fog before 1pm. Otherwise, cloudy, with a high near 41. Calm wind becoming northeast 5 to 9 mph in the afternoon. Chance of precipitation is 70%. Little or no ice accumulation expected.
Thursday Night
Rain. Low around 35. Northeast wind around 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
A 40 percent chance of rain before 1pm. Cloudy, with a high near 40. Northeast wind 10 to 14 mph.
Friday Night
Cloudy, with a low around 36.
Saturday
Cloudy, with a high near 50.
Saturday Night
A 50 percent chance of showers. Cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 39.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Conning Towers-Nautilus Park CT
 41.36°N 72.08°W (Elev. 79 ft)
Last Update:
1:59 pm EST Mar 4, 2026
Forecast Valid:
2pm EST Mar 4, 2026-6pm EDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation