News Headlines
Hazardous Weather Conditions
Current conditions at
Groton / New London, Groton / New London Airport (KGON)
Lat: 41.33°NLon: 72.05°WElev: 10ft.
Fair
85°F
29°C
| Humidity | 75% |
| Wind Speed | SW 10 mph |
| Barometer | 30.08 in (1018.4 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 95°F (35°C) |
| Last update | 7 Aug 12:56 pm EDT |
Extended Forecast for
3 Miles ESE South Lyme CT
Heat Advisory August 7, 01:27pm until August 7, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
This Afternoon
High: 88 °F
Slight Chance
T-stormsTonight
Low: 73 °F
Chance
T-storms then
Chance
ShowersSaturday
High: 87 °F
Partly Sunny
then Chance
T-stormsSaturday Night
Low: 73 °F
Chance
T-storms then
Slight Chance
ShowersSunday
High: 88 °F
Sunny
Sunday Night
Low: 69 °F
Mostly Clear
Monday
High: 86 °F
Sunny
Monday Night
Low: 73 °F
Partly Cloudy
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Heat index values as high as 99. Southwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms. Increasing clouds, with a low around 73. Light southwest wind. Chance of precipitation is 40%.
Saturday
A slight chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Heat index values as high as 95. Southwest wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 73. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 88. West wind 3 to 8 mph.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 85.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 69.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 82.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 82.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ESE South Lyme CT
41.3°N 72.27°W (Elev. 75 ft)
41.3°N 72.27°W (Elev. 75 ft)
1:26 pm EDT Aug 7, 2026
1pm EDT Aug 7, 2026-6pm EDT Aug 13, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
