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

41°F

5°C

Humidity 93%
Wind Speed S 6 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 26 Mar 2:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 41. South wind around 7 mph.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of rain before 11am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 11 to 14 mph. Chance of precipitation is 30%.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 44. Southwest wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 47. North wind 7 to 9 mph.

    High: 47 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, with a low around 29. Light and variable wind. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 5am. Cloudy, with a steady temperature around 41. South wind around 7 mph.
Thursday
A slight chance of rain before 11am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Southwest wind 11 to 14 mph. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 44. Southwest wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of showers before 2pm. Mostly cloudy, with a steady temperature around 47. North wind 7 to 9 mph.
Friday Night
A slight chance of rain before 11pm, then a slight chance of snow between 11pm and 2am. Mostly cloudy, with a low around 29. Light and variable wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 53.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 54.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 51.
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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:
2:21 am EDT Mar 26, 2026
Forecast Valid:
3am EDT Mar 26, 2026-6pm EDT Apr 1, 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