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

74°F

23°C

Humidity 88%
Wind Speed S 8 mph
Barometer 29.80 in (1009.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 23 Aug 5:56 pm EDT
Extended Forecast for

2 Miles SSW Preston CT

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, sunny, with a high near 81. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 79. West wind 5 to 9 mph.

    High: 79 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.
Monday
Patchy fog before 9am. Otherwise, sunny, with a high near 81. Light southwest wind increasing to 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 57. South wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers after 2pm. Increasing clouds, with a high near 79. West wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 57. Northwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Showers likely, mainly before 8am. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Preston CT
 41.53°N 72.01°W (Elev. 200 ft)
Last Update:
2:20 pm EDT Aug 23, 2026
Forecast Valid:
6pm EDT Aug 23, 2026-6pm EDT Aug 30, 2026
 
Forecast Discussion
 
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Additional Resources

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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