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.

Mostly Cloudy

64°F

18°C

Humidity 70%
Wind Speed NW 5 mph
Barometer 30.00 in (1015.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 21 May 1:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 55. Light north wind.

    Low: 55 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 67. Northeast wind around 6 mph becoming light and variable in the afternoon.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69. Northeast wind 8 to 10 mph becoming southeast in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of showers after 2pm. Cloudy, with a high near 64.

    High: 64 °F

    Cloudy then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after 8pm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers. High near 65. Breezy. Chance of precipitation is 90%.

    High: 65 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 55. Light north wind.
Thursday
A 40 percent chance of showers before 2pm. Mostly cloudy, with a high near 67. Northeast wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 50. Calm wind.
Friday
Mostly sunny, with a high near 69. Northeast wind 8 to 10 mph becoming southeast in the afternoon.
Friday Night
Increasing clouds, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers after 2pm. Cloudy, with a high near 64.
Saturday Night
Showers, mainly after 8pm. Low around 50. Chance of precipitation is 90%.
Sunday
Showers. High near 65. Breezy. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers after 8am. Mostly cloudy, with a high near 73.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 81.
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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:
2:19 am EDT May 21, 2026
Forecast Valid:
2am EDT May 21, 2026-6pm EDT May 27, 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