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 60%
Wind Speed S 3 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 17 Jan 11:56 am EST
Extended Forecast for

Niantic CT

  • This Afternoon

    This Afternoon: Rain likely, mainly after 1pm. Mostly cloudy, with a temperature falling to around 38 by 5pm. Southwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 42 °F⇓

    Rain Likely

  • Tonight

    Tonight: A slight chance of rain and snow after 4am. Mostly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 36. Calm wind becoming west around 6 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 22. Calm wind becoming west around 5 mph after midnight.

    Low: 22 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 15.

    Low: 15 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain likely, mainly after 1pm. Mostly cloudy, with a temperature falling to around 38 by 5pm. Southwest wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
A slight chance of rain and snow after 4am. Mostly cloudy, with a low around 31. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 4pm. Cloudy, with a high near 36. Calm wind becoming west around 6 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 22. Calm wind becoming west around 5 mph after midnight.
M.L.King Day
Mostly sunny, with a high near 34. Southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 15.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Niantic CT
 41.31°N 72.21°W (Elev. 30 ft)
Last Update:
4:17 am EST Jan 17, 2026
Forecast Valid:
12pm EST Jan 17, 2026-6pm EST Jan 23, 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