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

24°C

75°F

Humidity 94%
Wind Speed S 15 km/h
Barometer 1017.3 mb (30.04 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Last update 14 Jul 4:56 pm EDT
Extended Forecast for

Poquonock Bridge CT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 24. South wind around 13 km/h.

    High: 24 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 21. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 21 °C

    Chance
    T-storms then
    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 2pm. Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 27. Light southwest wind becoming south 6 to 11 km/h in the morning.

    High: 27 °C

    Chance
    T-storms and
    Patchy Fog
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 21. Calm wind.

    Low: 21 °C

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 29. Light southwest wind becoming south 8 to 13 km/h in the morning.

    High: 29 °C

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22.

    Low: 22 °C

    Mostly Cloudy
    then 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. Partly sunny, with a high near 29. Chance of precipitation is 30%.

    High: 29 °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 31.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 24. South wind around 13 km/h.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Patchy fog after midnight. Otherwise, increasing clouds, with a low around 21. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tuesday
A 40 percent chance of showers and thunderstorms before 2pm. Patchy fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 27. Light southwest wind becoming south 6 to 11 km/h in the morning.
Tuesday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 21. Calm wind.
Wednesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 29. Light southwest wind becoming south 8 to 13 km/h in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 22.
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. Partly sunny, with a high near 29. 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 31.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 19.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 27.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Poquonock Bridge CT
 41.33°N 72.02°W (Elev. 43 m)
Last Update:
2:29 pm EDT Jul 14, 2025
Forecast Valid:
5pm EDT Jul 14, 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