National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

73°F

23°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 16 Jul 9:56 pm EDT
Extended Forecast for

Uncasville-Oxoboxo Valley CT

Heat Advisory July 16, 10:19pm until July 17, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 16, 10:19pm until July 17, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 73 °F

    Patchy Fog
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 88. Heat index values as high as 99. Southwest wind 5 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. Southwest wind 6 to 8 mph becoming west after midnight.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 87. Northwest wind around 9 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Light north wind.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 73. Light south wind.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 88. Heat index values as high as 99. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 70. Southwest wind 6 to 8 mph becoming west after midnight.
Friday
Sunny, with a high near 87. Northwest wind around 9 mph.
Friday Night
Partly cloudy, with a low around 62. Light north wind.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Sunday
A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Uncasville-Oxoboxo Valley CT
 41.43°N 72.09°W (Elev. 56 ft)
Last Update:
2:07 pm EDT Jul 16, 2025
Forecast Valid:
10pm EDT Jul 16, 2025-6pm EDT Jul 23, 2025
 
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