Stonington Weather Forecast
- 58
- 75
Sunny
- 52
- 80
Mostly Sunny
- 50
- 69
Mostly Sunny
- 51
- 68
Partly Sunny
- 59
- 71
Mostly Sunny
- 61
- 76
Partly Sunny
- 57
- 76
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.
Stonington Temperature Statistics
September Temperature
Westerly, Westerly State Airport (5.6 miles)
Lowest 4 September, 2025
48 °FAverage September
63.7 °FHighest 6 September, 2025
78.1 °F
Climate (2020–Present)
Westerly, Westerly State Airport (5.6 miles)
Average Low 2020–2025
44.3 °FAverage 2020–2025
52.5 °FAverage High 2020–2025
60.4 °F