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

54°F

12°C

Humidity 69%
Wind Speed N 9 mph
Barometer 30.28 in (1025.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 22 May 2:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. North wind around 6 mph.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 67. Northeast wind 11 to 13 mph becoming southeast in the afternoon.

    High: 67 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, with a low around 46. Southeast wind 5 to 7 mph becoming calm.

    Low: 46 °F

    Cloudy

  • Saturday

    Saturday: A slight chance of showers between 11am and 2pm, then a chance of rain after 2pm. Cloudy, with a high near 61. East wind 6 to 13 mph. Chance of precipitation is 40%.

    High: 61 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain, mainly after 8pm. Low around 49. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • Sunday

    Sunday: Rain. High near 62. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 62 °F

    Rain

  • Sunday Night

    Sunday Night: Rain with patchy drizzle, mainly before 2am, then patchy drizzle with a chance of rain after 2am. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Rain

  • Memorial Day

    Memorial Day: A chance of rain before 8am, then a chance of showers after 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.

    High: 76 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. North wind around 6 mph.
Friday
Partly sunny, with a high near 67. Northeast wind 11 to 13 mph becoming southeast in the afternoon.
Friday Night
Cloudy, with a low around 46. Southeast wind 5 to 7 mph becoming calm.
Saturday
A slight chance of showers between 11am and 2pm, then a chance of rain after 2pm. Cloudy, with a high near 61. East wind 6 to 13 mph. Chance of precipitation is 40%.
Saturday Night
Rain, mainly after 8pm. Low around 49. East wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 62. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
Rain with patchy drizzle, mainly before 2am, then patchy drizzle with a chance of rain after 2am. Low around 55. Chance of precipitation is 80%.
Memorial Day
A chance of rain before 8am, then a chance of showers after 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.34°N 72.2°W (Elev. 92 ft)
Last Update:
2:42 am EDT May 22, 2026
Forecast Valid:
3am EDT May 22, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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