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

45°F

7°C

Humidity 86%
Wind Speed S 7 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 26 Mar 4:56 am EDT
Extended Forecast for

Niantic CT

  • Overnight

    Overnight: A 20 percent chance of rain. Cloudy, with a steady temperature around 44. South wind around 8 mph.

    Low: 44 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain before 8am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 57. Southwest wind around 14 mph. Chance of precipitation is 30%.

    High: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 44. Southwest wind 8 to 15 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, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/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 28.

    Low: 28 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Cloudy, with a steady temperature around 44. South wind around 8 mph.
Thursday
A slight chance of rain before 8am, then a chance of showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 57. Southwest wind around 14 mph. Chance of precipitation is 30%.
Thursday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 44. Southwest wind 8 to 15 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, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 29. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 28.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 53.
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
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
5:14 am EDT Mar 26, 2026
Forecast Valid:
5am 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