Groton-New London Airport Weather Forecast
- 58
- 75
Sunny
- 53
- 80
Mostly Sunny
- 49
- 69
Mostly Sunny
- 49
- 67
Partly Sunny
- 57
- 69
Partly Sunny
- 60
- 75
Slight Chance Rain Showers
- 57
- 75
Slight Chance Rain Showers
Today 18 Sep Southern New London
Sunny. Highs in the upper 70s. Southwest Winds 5 to 10 Mph.
Tonight 18 Sep Southern New London
Clear. Lows in the upper 50s. West Winds around 5 Mph.
Groton-New London Airport Temperature Statistics
September Temperature
Groton / New London, Groton / New London Airport (0 miles)
Lowest 9 September, 2025
48 °FAverage September
61.9 °FHighest 6 September, 2025
75.9 °F
Climate (2020–Present)
Groton / New London, Groton / New London Airport (0 miles)
Average Low 2020–2025
45.7 °FAverage 2020–2025
53.6 °FAverage High 2020–2025
61.1 °F