National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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 94%
Wind Speed SW 5 mph
Barometer 29.99 in (1015.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 8 Aug 3:56 am EDT
Extended Forecast for

2 Miles WNW Waterford CT

Heat Advisory August 8, 04:01am until August 8, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 8, 04:01am until August 8, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Today

    High: 90 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Heat index values as high as 98. West wind 3 to 8 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Today
Patchy fog between 8am and 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 98. Calm wind becoming southwest 5 to 9 mph in the morning.
Tonight
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 90. Heat index values as high as 98. West wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 67. Calm wind.
Monday
Sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 89.
Tuesday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Waterford CT
 41.35°N 72.17°W (Elev. 69 ft)
Last Update:
2:28 am EDT Aug 8, 2026
Forecast Valid:
4am EDT Aug 8, 2026-6pm EDT Aug 14, 2026
 
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