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.

Fog/Mist

21°C

70°F

Humidity 100%
Wind Speed SE 13 km/h
Barometer 1020.3 mb (30.13 in)
Dewpoint 21°C (70°F)
Visibility 3.22 km
Last update 13 Jul 9:56 am EDT
Extended Forecast for

Groton / New London Airport CT

  • Today

    Today: Patchy drizzle and fog before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 24. Southeast wind 11 to 16 km/h.

    High: 24 °C

    Patchy
    Drizzle and
    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy drizzle and fog after 10pm. Mostly cloudy, with a low around 20. East wind 5 to 10 km/h.

    Low: 20 °C

    Patchy
    Drizzle and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy, with a high near 27. South wind 5 to 13 km/h.

    High: 27 °C

    Mostly Cloudy

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. South wind 5 to 10 km/h becoming calm after midnight.

    Low: 22 °C

    Mostly Cloudy
    then Slight
    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms. Patchy fog before 7am. Otherwise, partly sunny, with a high near 28. Light southwest wind increasing to 6 to 11 km/h in the morning.

    High: 28 °C

    Slight Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22.

    Low: 22 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °C

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 28.

    High: 28 °C

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Today
Patchy drizzle and fog before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 24. Southeast wind 11 to 16 km/h.
Tonight
Patchy drizzle and fog after 10pm. Mostly cloudy, with a low around 20. East wind 5 to 10 km/h.
Monday
Mostly cloudy, with a high near 27. South wind 5 to 13 km/h.
Monday Night
A 20 percent chance of showers and thunderstorms after 2am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. South wind 5 to 10 km/h becoming calm after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms. Patchy fog before 7am. Otherwise, partly sunny, with a high near 28. Light southwest wind increasing to 6 to 11 km/h in the morning.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 28.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 29.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 m)
Last Update:
6:52 am EDT Jul 13, 2025
Forecast Valid:
10am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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Additional Resources

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Chance of Precipitation