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.

Light Rain

44°F

7°C

Humidity 93%
Wind Speed SW 9 mph
Barometer 29.78 in (1008.2 mb)
Dewpoint 42°F (6°C)
Visibility 9.00 mi
Wind Chill39°F (4°C)
Last update 21 Mar 12:56 am EDT
Extended Forecast for

Uncasville-Oxoboxo Valley CT

  • Overnight

    Overnight: Showers likely, mainly before 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 41. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 6 to 11 mph.

    High: 54 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 53. South wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 53 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. South wind around 6 mph becoming north after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: A 40 percent chance of rain before 2pm. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Showers likely, mainly before 2am. Patchy fog after 2am. Otherwise, cloudy, with a low around 41. Southwest wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 54. Northwest wind 6 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 36. Light and variable wind.
Sunday
A 30 percent chance of rain, mainly after 2pm. Mostly cloudy, with a high near 53. South wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 36. South wind around 6 mph becoming north after midnight. Chance of precipitation is 70%. 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 45.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A chance of rain and snow between 8am and 2pm. Partly sunny, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 50.
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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:
8:14 pm EDT Mar 20, 2026
Forecast Valid:
1am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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