Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

75°F

24°C

Humidity 55%
Wind Speed SW 10 G 21 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 10:56 am EDT
Extended Forecast for

Groton CT

  • Today

    Today: Sunny, with a high near 73. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. West wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 70. Calm wind becoming southeast 5 to 9 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm.  Low around 63. Southeast wind around 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 2pm.  Mostly cloudy, with a high near 72. West wind around 7 mph becoming north in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm.  Partly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.
Monday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 70. Calm wind becoming southeast 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm. Low around 63. Southeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 72. West wind around 7 mph becoming north in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 72.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton CT
 41.32°N 72.06°W (Elev. 3 ft)
2:19 am EDT Jun 21, 2026
11am EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database