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

32°F

0°C

Humidity 96%
Wind Speed Calm
Barometer 30.01 in (1016.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 9 Mar 7:56 am EDT
Extended Forecast for

2 Miles NNE Deep River CT

  • Today

    Today: Sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 37. Light southwest wind.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 58. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 58 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 37. Light southwest wind.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog. Otherwise, increasing clouds, with a low around 41. Calm wind.
Wednesday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 58. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Thursday
Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A chance of rain and snow before 8pm. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 44.
Friday Night
A chance of rain after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Saturday
A 30 percent chance of snow. Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Deep River CT
 41.43°N 72.42°W (Elev. 98 ft)
Last Update:
7:50 am EDT Mar 9, 2026
Forecast Valid:
9am EDT Mar 9, 2026-6pm EDT Mar 15, 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