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 Fog/Mist

63°F

17°C

Humidity 93%
Wind Speed E 20 mph
Barometer 30.01 in (1016.0 mb)
Dewpoint 61°F (16°C)
Visibility 4.00 mi
Last update 1 Sep 12:56 pm EDT
Extended Forecast for

3 Miles WSW Niantic CT

  • This Afternoon

    This Afternoon: Showers, with thunderstorms also possible after 2pm. High near 74. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 63. East wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 74. East wind around 9 mph.

    High: 74 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Showers, with thunderstorms also possible after 2pm. High near 74. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 63. East wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly cloudy, with a high near 74. East wind around 9 mph.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 64.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 58.
Labor Day
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Niantic CT
 41.32°N 72.24°W (Elev. 56 ft)
Last Update:
5:43 am EDT Sep 1, 2026
Forecast Valid:
1pm EDT Sep 1, 2026-6pm EDT Sep 7, 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