Stonington Harbor Weather Forecast

    • 68
    • 83

    Rain Showers Likely

    • 63
    • 82

    Rain Showers Likely

    • 61
    • 82

    Mostly Sunny

    • 61
    • 78

    Mostly Sunny

    • 66
    • 77

    Rain Showers Likely

    • 63
    • 78

    Chance Rain Showers

Today 12 Aug Southern New London

Sunny. Highs in the mid 80s. West Winds 5 to 10 Mph.

Tonight 12 Aug Southern New London

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows in the upper 60s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stonington Harbor Temperature Statistics

August Temperature

Westerly, Westerly State Airport (5.6 miles)

  • Lowest 5 August, 2026

    57.9 °F

  • Average August

    75.3 °F

  • Highest 7 August, 2026

    87.1 °F

Climate (2021–2026)

Westerly, Westerly State Airport (5.6 miles)

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    60.4 °F
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