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

50°F

10°C

Humidity 89%
Wind Speed SW 5 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 13 Apr 7:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: A 20 percent chance of showers before 10pm. Areas of fog after 2am. Otherwise, partly cloudy, with a low around 51. West wind around 6 mph becoming calm after midnight.

    Low: 51 °F

    Slight Chance
    Showers then
    Areas Fog

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 68. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 68 °F

    Areas Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 52. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Light southwest wind. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before 10pm. Areas of fog after 2am. Otherwise, partly cloudy, with a low around 51. West wind around 6 mph becoming calm after midnight.
Tuesday
A slight chance of showers between 2pm and 5pm. Areas of fog before 8am. Otherwise, mostly sunny, with a high near 68. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 52. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 73. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Light southwest wind. Chance of precipitation is 40%.
Thursday
Mostly cloudy, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 71.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 51.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
7:19 pm EDT Apr 13, 2026
Forecast Valid:
8pm EDT Apr 13, 2026-6pm EDT Apr 20, 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