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.

Overcast

53°F

12°C

Humidity 86%
Wind Speed E 7 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 18 Apr 1:56 pm EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 54. East wind around 8 mph.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 46. Southeast wind around 6 mph becoming calm in the evening.

    Low: 46 °F

    Patchy Fog

  • Sunday

    Sunday: Showers, mainly before 5pm. Patchy fog before 11am. High near 56. Southeast wind 6 to 15 mph becoming northwest in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 51. West wind 7 to 9 mph.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 54. East wind around 8 mph.
Tonight
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 46. Southeast wind around 6 mph becoming calm in the evening.
Sunday
Showers, mainly before 5pm. Patchy fog before 11am. High near 56. Southeast wind 6 to 15 mph becoming northwest in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 30 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. West wind 6 to 8 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 51. West wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
2:19 pm EDT Apr 18, 2026
Forecast Valid:
2pm EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation