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

34°F

1°C

Humidity 73%
Wind Speed Calm
Barometer 30.48 in (1032.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Apr 5:56 am EDT
Extended Forecast for

Uncasville-Oxoboxo Valley CT

  • Today

    Today: Increasing clouds, with a high near 55. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 55 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 10pm and midnight. Mostly cloudy, with a low around 41. South wind 5 to 8 mph.

    Low: 41 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 63. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. West wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 55. Light and variable wind becoming south 6 to 11 mph in the morning.
Tonight
A 30 percent chance of showers, mainly between 10pm and midnight. Mostly cloudy, with a low around 41. South wind 5 to 8 mph.
Monday
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 63. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. West wind 5 to 9 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 74. Calm wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 57.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Uncasville-Oxoboxo Valley CT
 41.44°N 72.12°W (Elev. 138 ft)
Last Update:
6:06 am EDT Apr 12, 2026
Forecast Valid:
6am EDT Apr 12, 2026-6pm EDT Apr 18, 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