Showers and Storms in the East; Dangerously Hot and Dry in the West

A frontal boundary will bring scattered showers and storms to portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Intermountain West and expand into the Central U.S. by early next week. Elevated wildfire conditions will develop across portions of the Northern/Central Plains and air quality issues will persist in the Northwest. Read More >

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast

74°F

23°C

Humidity 100%
Wind Speed SE 6 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 74°F (23°C)
Visibility 7.00 mi
Last update 6 Aug 12:56 am EDT
Extended Forecast for

Groton CTSimilar City Names

Heat Advisory August 6, 11:00am until August 7, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly cloudy, with a low around 71. Light southwest wind.

    Low: 71 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind 5 to 10 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Southwest wind 5 to 8 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 80. Southwest wind 5 to 9 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph.

    Low: 72 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 71. Light southwest wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 79. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 73. Southwest wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 80. Southwest wind 5 to 9 mph.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Southwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 72.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Groton CTSimilar City Names
 41.32°N 72.09°W (Elev. 3 ft)
2:06 pm EDT Aug 5, 2026
1am EDT Aug 6, 2026-6pm EDT Aug 12, 2026
 
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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