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

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.11 in (1019.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 4 Aug 10:56 pm EDT
Extended Forecast for

3 Miles N Uncasville CT

  • Tonight

    Tonight: Patchy fog between 3am and 5am. Otherwise, mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, increasing clouds, with a low around 68. Light south wind. Chance of precipitation is 30%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Heat index values as high as 99. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    Showers and
    Patchy Fog
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog between 3am and 5am. Otherwise, mostly cloudy, with a low around 59. Calm wind.
Wednesday
Patchy fog between 8am and 9am. Otherwise, mostly sunny, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Patchy fog before 3am, then patchy fog after 4am. Otherwise, increasing clouds, with a low around 68. Light south wind. Chance of precipitation is 30%.
Thursday
A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 88. Heat index values as high as 99. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 89.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Uncasville CT
 41.5°N 72.11°W (Elev. 59 ft)
Last Update:
4:10 pm EDT Aug 4, 2026
Forecast Valid:
11pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation