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

44°F

7°C

Humidity 96%
Wind Speed N 5 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 22 Mar 10:56 pm EDT
Extended Forecast for

Niantic CT

  • Tonight

    Tonight: Rain. Low around 36. Light northeast wind. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain

  • Monday

    Monday: Rain, mainly before 11am. High near 44. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 44 °F

    Rain then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Northwest wind around 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. Wind chill values between 25 and 35 early. North wind around 6 mph becoming southwest in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Tonight
Rain. Low around 36. Light northeast wind. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain, mainly before 11am. High near 44. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Partly cloudy, with a low around 30. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 46. Wind chill values between 25 and 35 early. North wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Partly sunny, with a high near 51.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Friday
Rain likely before 8am. Partly sunny, with a high near 52. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 46.
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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:
3:49 pm EDT Mar 22, 2026
Forecast Valid:
11pm EDT Mar 22, 2026-6pm EDT Mar 29, 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