Stonington Weather Forecast

    • 60
    • 72

    Increasing Clouds

    • 65
    • 76

    Chance Rain Showers

    • 53
    • 77

    Partly Sunny

    • 55
    • 67

    Rain Showers Likely

    • 58
    • 69

    Chance Rain Showers

    • 57
    • 69

    Chance Rain Showers

Today 16 Sep Southern New London

Mostly sunny. Highs in the lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 16 Sep Southern New London

Partly cloudy. Patchy fog after midnight. Lows in the lower 60s. Southwest Winds around 5 Mph.

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Stonington Temperature Statistics

September Temperature

Westerly, Westerly State Airport (5.6 miles)

  • Lowest 12 September, 2026

    52 °F

  • Average September

    68 °F

  • Highest 4 September, 2026

    82 °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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