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.

Mostly Cloudy

24°C

75°F

Humidity 94%
Wind Speed S 9 km/h
Barometer 1019.2 mb (30.10 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Last update 13 Jul 2:56 pm EDT
Extended Forecast for

New London CT

  • Tonight

    Tonight: Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 21. Southeast wind 5 to 10 km/h becoming calm in the evening.

    Low: 21 °C

    Patchy Fog
    then Patchy
    Drizzle and
    Patchy Fog

  • Monday

    Monday: Patchy drizzle before 8am, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 28. Light southeast wind becoming south 6 to 11 km/h in the morning. Chance of precipitation is 20%.

    High: 28 °C

    Patchy
    Drizzle then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 22. Southwest wind 3 to 8 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 29. Calm wind becoming southwest 5 to 10 km/h in the morning. Chance of precipitation is 30%.

    High: 29 °C

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 31.

    High: 31 °C

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °C

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 31.

    High: 31 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23.

    Low: 23 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy drizzle after 5am. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 21. Southeast wind 5 to 10 km/h becoming calm in the evening.
Monday
Patchy drizzle before 8am, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 28. Light southeast wind becoming south 6 to 11 km/h in the morning. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 22. Southwest wind 3 to 8 km/h.
Tuesday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Mostly cloudy, with a high near 29. Calm wind becoming southwest 5 to 10 km/h in the morning. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 22. Calm wind.
Wednesday
Partly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 33.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New London CT
 41.35°N 72.11°W (Elev. 98 m)
Last Update:
2:02 pm EDT Jul 13, 2025
Forecast Valid:
3pm EDT Jul 13, 2025-6pm EDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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