National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fog

71°F

22°C

Humidity 100%
Wind Speed S 7 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 71°F (22°C)
Visibility 0.25 mi
Last update 28 Aug 6:56 am EDT
Extended Forecast for

Preston CTSimilar City Names

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.

    High: 82 °F

    Chance
    T-storms and
    Areas Fog

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 58. Calm wind becoming north around 5 mph after midnight.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. North wind around 5 mph becoming calm in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Monday

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

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 58. Calm wind becoming north around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 79. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
Mostly clear, with a low around 57. Calm wind.
Sunday
Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 64.
Monday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 82.
Monday Night
A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 77.
Tuesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 80.
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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:
4:20 am EDT Aug 28, 2026
Forecast Valid:
7am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
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Additional Resources

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Chance of Precipitation