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

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.11 in (1019.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 5 Aug 12:56 am EDT
Extended Forecast for

Conning Towers-Nautilus Park CT

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 66. Calm wind.

    Low: 66 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Calm wind becoming south around 6 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 69. Light south wind.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind 5 to 9 mph.

    High: 78 °F

    Chance
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a steady temperature around 75. Southwest wind 6 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 66. Calm wind.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 69. Light south wind.
Thursday
A 30 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind 5 to 9 mph.
Thursday Night
Mostly clear, with a steady temperature around 75. Southwest wind 6 to 8 mph.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 86.
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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:
4:10 pm EDT Aug 4, 2026
Forecast Valid:
1am EDT Aug 5, 2026-6pm EDT Aug 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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