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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Preston CTSimilar City Names

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Patchy Fog

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south 5 to 9 mph in the morning.

    High: 82 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms, mainly after 2am. Cloudy, with a low around 70. South wind around 6 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 85 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 67. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south 5 to 9 mph in the morning.
Monday Night
A 50 percent chance of showers and thunderstorms, mainly after 2am. Cloudy, with a low around 70. South wind around 6 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Thursday Night
Mostly cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Preston CTSimilar City Names
 41.55°N 71.98°W (Elev. 200 ft)
Last Update:
2:18 am EDT Jul 14, 2025
Forecast Valid:
3am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
 
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Additional Resources

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