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

69°F

21°C

Humidity 66%
Wind Speed S 6 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Apr 12:56 pm EDT
Extended Forecast for

Uncasville-Oxoboxo Valley CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Southwest wind around 9 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 57. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 51. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 65. Northeast wind 5 to 7 mph becoming southeast in the afternoon.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.

    Low: 35 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Southwest wind around 9 mph.
Tonight
A slight chance of showers before 2am, then a slight chance of showers after 5am. Mostly cloudy, with a low around 57. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 51. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 65. Northeast wind 5 to 7 mph becoming southeast in the afternoon.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.
Sunday
Showers, mainly after 8am. High near 58. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Uncasville-Oxoboxo Valley CT
 41.44°N 72.12°W (Elev. 138 ft)
Last Update:
1:15 pm EDT Apr 16, 2026
Forecast Valid:
1pm EDT Apr 16, 2026-6pm EDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation