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

40°F

4°C

Humidity 79%
Wind Speed S 5 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 20 Mar 8:56 am EDT
Extended Forecast for

2 Miles SSW Niantic CT

  • Today

    Today: A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 48. Light southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 48 °F

    Mostly Sunny
    then Chance
    Rain

  • Tonight

    Tonight: Rain, mainly before 2am. Low around 40. Southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Northwest wind around 9 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. North wind around 5 mph becoming light and variable in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow before 11am, then a chance of rain. Mostly cloudy, with a high near 49. South wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 49 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of rain after 5pm. Mostly sunny, with a high near 48. Light southwest wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.
Tonight
Rain, mainly before 2am. Low around 40. Southwest wind 9 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 52. Northwest wind around 9 mph.
Saturday Night
Mostly cloudy, with a low around 37. North wind around 5 mph becoming light and variable in the evening.
Sunday
A slight chance of rain and snow before 11am, then a chance of rain. Mostly cloudy, with a high near 49. South wind 6 to 10 mph. Chance of precipitation is 30%.
Sunday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
2:26 am EDT Mar 20, 2026
Forecast Valid:
9am EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation