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

58°F

14°C

Humidity 41%
Wind Speed W 15 G 28 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 4 May 9:56 am EDT
Extended Forecast for

Groton CTSimilar City Names

  • Today

    Today: Sunny, with a high near 59. Southwest wind around 17 mph, with gusts as high as 29 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Southwest wind 10 to 15 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Breezy, with a south wind 14 to 20 mph.

    High: 61 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. Breezy, with a southwest wind 18 to 23 mph.

    Low: 54 °F

    Partly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A chance of showers before 2pm, then rain between 2pm and 5pm, then showers after 5pm. High near 58. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers before 8pm, then rain between 8pm and 2am, then a chance of showers after 2am. Low around 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly after 2pm. Partly sunny, with a high near 57. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 59. Southwest wind around 17 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 51. Southwest wind 10 to 15 mph.
Tuesday
Sunny, with a high near 61. Breezy, with a south wind 14 to 20 mph.
Tuesday Night
Partly cloudy, with a low around 54. Breezy, with a southwest wind 18 to 23 mph.
Wednesday
A chance of showers before 2pm, then rain between 2pm and 5pm, then showers after 5pm. High near 58. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers before 8pm, then rain between 8pm and 2am, then a chance of showers after 2am. Low around 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly after 2pm. Partly sunny, with a high near 57. Chance of precipitation is 60%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton CTSimilar City Names
 41.32°N 72.09°W (Elev. 3 ft)
Last Update:
2:00 am EDT May 4, 2026
Forecast Valid:
10am EDT May 4, 2026-6pm EDT May 10, 2026
 
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Additional Resources

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Chance of Precipitation