Current conditions at

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

Lat: 41.33° N Lon: 72.05° W Elev: 10 ft.

Fair

70°F

21°C

Humidity 97%
Wind Speed NE 3 mph
Barometer 29.88 in (1011.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 3 Sep 10:56 pm EDT
Detailed forecast for

Southern Middlesex

This Afternoon
Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Southwest winds around 5 mph. Chance of rain 40 percent.
Tonight
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. West winds around 5 mph. Chance of rain 40 percent.
Friday
Mostly sunny. Humid with highs in the lower 80s. Northwest winds around 5 mph.
Friday Night
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 60s. Northwest winds around 5 mph.
Saturday
Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. North winds around 5 mph. Chance of rain 40 percent.
Saturday Night
Mostly cloudy with a 40 percent chance of showers. Lows around 60.
Sunday
Mostly sunny. Highs in the lower 70s.
Sunday Night
Mostly clear. Lows in the mid 50s.
Labor Day
Sunny. Highs in the mid 70s.
Monday Night
Mostly clear. Lows in the upper 50s.
Tuesday
Sunny. Highs in the upper 70s.
Tuesday Night
Partly cloudy. Lows around 60.
Wednesday
Mostly sunny. Highs in the mid 70s.
Wednesday Night
Mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 30 percent.
Thursday
Partly sunny. A chance of showers in the morning. Highs in the upper 70s. Chance of rain 30 percent.



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227 PM EDT Thu Sep 3 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database