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

31°F

-1°C

Humidity 59%
Wind Speed W 3 mph
Barometer 30.41 in (1029.7 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 15 Mar 3:56 am EDT
Extended Forecast for

Uncasville CT

  • Today

    Today: Partly sunny, with a high near 45. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly after 5am. Patchy fog after 2am. Temperature falling to near 35 by 8pm, then rising to around 44 during the remainder of the night. Southeast wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 35 °F⇑

    Partly Cloudy
    then Showers
    and Patchy
    Fog

  • Monday

    Monday: Intermittent showers and thunderstorms. Patchy fog before noon. Otherwise, cloudy, with a high near 59. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.

    High: 59 °F

    Intermittent
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: Periods of showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 39. Windy, with a south wind 23 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 39 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 39 by 8am. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 44 °F⇓

    Showers
    Likely then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 38.

    High: 38 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 45. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
Showers and possibly a thunderstorm, mainly after 5am. Patchy fog after 2am. Temperature falling to near 35 by 8pm, then rising to around 44 during the remainder of the night. Southeast wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Intermittent showers and thunderstorms. Patchy fog before noon. Otherwise, cloudy, with a high near 59. Breezy, with a south wind 18 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.
Monday Night
Periods of showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 39. Windy, with a south wind 23 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 39 by 8am. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Increasing clouds, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 50.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 48. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Uncasville CT
 41.48°N 72.14°W (Elev. 358 ft)
Last Update:
4:56 am EDT Mar 15, 2026
Forecast Valid:
5am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation