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.

Overcast

13°C

55°F

Humidity 83%
Wind Speed NE 6 km/h
Barometer 1022.4 mb (30.20 in)
Dewpoint 10°C (50°F)
Visibility 16 km
Last update 14 May 1:56 am EDT
Extended Forecast for

New London CT

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 12. East wind around 10 km/h.

    Low: 12 °C

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Cloudy, with a high near 19. East wind 11 to 16 km/h. Chance of precipitation is 60%.

    High: 19 °C

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 13. East wind 10 to 13 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.

    Low: 13 °C

    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 20. Southeast wind 8 to 10 km/h. Chance of precipitation is 60%.

    High: 20 °C

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. Calm wind.

    Low: 14 °C

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 23.

    High: 23 °C

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 14.

    Low: 14 °C

    Chance
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 22.

    High: 22 °C

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.

    Low: 14 °C

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 12. East wind around 10 km/h.
Wednesday
Showers likely, mainly after 2pm. Cloudy, with a high near 19. East wind 11 to 16 km/h. Chance of precipitation is 60%.
Wednesday Night
Showers. Low around 13. East wind 10 to 13 km/h. Chance of precipitation is 80%. New precipitation amounts between 5 and 7.5 mm possible.
Thursday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. Mostly cloudy, with a high near 20. Southeast wind 8 to 10 km/h. Chance of precipitation is 60%.
Thursday Night
Mostly cloudy, with a low around 14. Calm wind.
Friday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 23.
Friday Night
A 40 percent chance of showers before 2am. Mostly cloudy, with a low around 14.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 22.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 14. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 20.
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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:
10:30 pm EDT May 13, 2025
Forecast Valid:
2am EDT May 14, 2025-6pm EDT May 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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