Crescent Beach Weather Forecast

    • 62
    • 73

    Sunny

    • 67
    • 71

    Chance Rain Showers

    • 66
    • 73

    Rain Showers

    • 60
    • 73

    Mostly Sunny

    • 62
    • 68

    Mostly Sunny

    • 65
    • 70

    Partly Sunny

    • 65
    • 72

    Chance Rain Showers

Today 11 Sep Block Island

Sunny. Near steady temperature in the lower 70s. Southwest Winds around 10 Mph.

Tonight 11 Sep Block Island

Clear. Lows in the lower 60s. Northwest Winds 5 to 10 Mph, becoming northeast after midnight.

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Crescent Beach Temperature Statistics

September Temperature

Block Island State Airport (1.2 miles)

  • Lowest 7 September, 2026

    59 °F

  • Average September

    68.2 °F

  • Highest 4 September, 2026

    81 °F

Climate (2021–2026)

Block Island State Airport (1.2 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    57.5 °F
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