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

67°F

19°C

Humidity 87%
Wind Speed NW 7 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 31 Aug 2:56 am EDT
Extended Forecast for

3 Miles NE Gales Ferry CT

  • Overnight

    Overnight: Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a steady temperature around 65. Calm wind.

    Low: 65 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 62. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 11am, then showers likely. High near 75. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers before 2am. Mostly cloudy, with a low around 58. East wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 2pm. High near 81. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely then
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog between 4am and 5am. Otherwise, mostly cloudy, with a steady temperature around 65. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
A slight chance of showers before 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 62. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm before 11am, then showers likely. High near 75. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
A 50 percent chance of showers before 2am. Mostly cloudy, with a low around 58. East wind around 5 mph becoming calm in the evening.
Wednesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers. Low around 62. Chance of precipitation is 80%.
Thursday
Showers, with thunderstorms also possible after 2pm. High near 81. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 74.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Gales Ferry CT
 41.49°N 72.05°W (Elev. 98 ft)
Last Update:
2:07 am EDT Aug 31, 2026
Forecast Valid:
3am EDT Aug 31, 2026-6pm EDT Sep 6, 2026
 
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