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

Yantic CT

  • Overnight

    Overnight: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 60%.

    Low: 22 °C

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly before 11am. Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 29. Calm wind becoming south 5 to 10 km/h in the afternoon.

    High: 29 °C

    Chance
    T-storms and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight. Otherwise, increasing clouds, with a low around 21. Southwest wind 3 to 8 km/h.

    Low: 21 °C

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 32. Heat index values as high as 35. Light southwest wind becoming south 8 to 13 km/h in the morning.

    High: 32 °C

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 22. Southwest wind 5 to 10 km/h.

    Low: 22 °C

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.

    High: 32 °C

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 19.

    Low: 19 °C

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 29. Calm wind becoming south 5 to 10 km/h in the afternoon.
Tuesday Night
Patchy fog after midnight. Otherwise, increasing clouds, with a low around 21. Southwest wind 3 to 8 km/h.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 11am. Otherwise, partly sunny, with a high near 32. Heat index values as high as 35. Light southwest wind becoming south 8 to 13 km/h in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Increasing clouds, with a low around 22. Southwest wind 5 to 10 km/h.
Thursday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 23. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 33.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 28.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Yantic CT
 41.54°N 72.04°W (Elev. 144 m)
Last Update:
2:29 pm EDT Jul 14, 2025
Forecast Valid:
1am EDT Jul 15, 2025-6pm EDT Jul 21, 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