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.

Fair

22°F

-6°C

Humidity 25%
Wind Speed NE 3 mph
Barometer 30.68 in (1038.9 mb)
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Last update 2 Mar 9:56 am EST
Extended Forecast for

3 Miles SSW Niantic CT

  • Today

    Today: Sunny, with a high near 29. Wind chill values between 20 and 25. Light and variable wind becoming west around 5 mph in the afternoon.

    High: 29 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. Southwest wind 3 to 5 mph.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 4pm. High near 41. Wind chill values between 15 and 25. South wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain. Low around 35. Southeast wind around 7 mph becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain. Partly sunny, with a high near 46. West wind around 6 mph becoming south in the afternoon.

    High: 46 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Thursday

    Thursday: A 40 percent chance of rain. Cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: A 50 percent chance of rain. Cloudy, with a high near 44.

    High: 44 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 29. Wind chill values between 20 and 25. Light and variable wind becoming west around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 20. Southwest wind 3 to 5 mph.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 4pm. High near 41. Wind chill values between 15 and 25. South wind around 6 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday Night
Rain. Low around 35. Southeast wind around 7 mph becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 46. West wind around 6 mph becoming south in the afternoon.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
A 40 percent chance of rain. Cloudy, with a high near 49.
Thursday Night
A 50 percent chance of rain. Cloudy, with a low around 37.
Friday
A 50 percent chance of rain. Cloudy, with a high near 44.
Friday Night
A 30 percent chance of rain before 1am. Cloudy, with a low around 36.
Saturday
Cloudy, with a high near 51.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 52.
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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:
2:30 am EST Mar 2, 2026
Forecast Valid:
10am EST Mar 2, 2026-6pm EDT Mar 8, 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