Stonington Harbor Weather Forecast

    • 71
    • 77

    Mostly Cloudy

    • 61
    • 83

    Mostly Cloudy

    • 54
    • 75

    Mostly Sunny

    • 63
    • 72

    Rain Showers Likely

    • 64
    • 74

    Chance Rain Showers

    • 60
    • 77

    Partly Sunny

    • 65
    • 74

    Partly Sunny

Today 9 Sep Southern New London

Partly sunny. Near steady temperature in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 Sep Southern New London

Mostly cloudy. Lows in the lower 70s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Stonington Harbor Temperature Statistics

September Temperature

Westerly, Westerly State Airport (5.6 miles)

  • Lowest 7 September, 2026

    54 °F

  • Average September

    67.7 °F

  • Highest 4 September, 2026

    82 °F

Climate (2021–2026)

Westerly, Westerly State Airport (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads