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

40°F

4°C

Humidity 83%
Wind Speed S 8 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 22 Mar 4:56 am EDT
Extended Forecast for

3 Miles SSW Niantic CT

  • Today

    Today: A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 50. South wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Chance Rain

  • Tonight

    Tonight: Rain before 11pm, then showers after 11pm. Low around 37. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 44. North wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 44 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. Wind chill values between 25 and 30. Northwest wind 8 to 10 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 44. Northwest wind around 7 mph becoming southwest in the afternoon.

    High: 44 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 34.

    Low: 34 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 50. South wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Rain before 11pm, then showers after 11pm. Low around 37. Light and variable wind becoming north around 6 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 44. North wind 11 to 13 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 30. Wind chill values between 25 and 30. Northwest wind 8 to 10 mph.
Tuesday
Sunny, with a high near 44. Northwest wind around 7 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 34.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Thursday Night
Rain likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Niantic CT
 41.29°N 72.21°W (Elev. 3 ft)
Last Update:
2:51 am EDT Mar 22, 2026
Forecast Valid:
5am EDT Mar 22, 2026-6pm EDT Mar 28, 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