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.

Overcast

63°F

17°C

Humidity 70%
Wind Speed NE 7 mph
Barometer 30.18 in (1022.0 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 15 Jun 9:56 am EDT
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: Partly sunny, with a high near 67. East wind around 8 mph.

    High: 67 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 69. East wind 6 to 9 mph.

    High: 69 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58. East wind 3 to 6 mph.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71. Southeast wind 6 to 8 mph.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 74.

    High: 74 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 67. East wind around 8 mph.
Tonight
Mostly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 69. East wind 6 to 9 mph.
Monday Night
Mostly cloudy, with a low around 58. East wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 71. Southeast wind 6 to 8 mph.
Tuesday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 61.
Wednesday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 65.
Juneteenth
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 82.
Thursday Night
A 30 percent chance of showers before 2am. Mostly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 62.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
3:11 am EDT Jun 15, 2025
Forecast Valid:
10am EDT Jun 15, 2025-6pm EDT Jun 21, 2025
 
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