Block Island State Airport Weather Forecast

    • 70
    • 77

    Chance Rain Showers

    • 63
    • 80

    Chance Rain Showers

    • 58
    • 73

    Mostly Sunny

    • 63
    • 71

    Chance Rain Showers

    • 66
    • 74

    Chance Rain Showers

    • 65
    • 76

    Partly Sunny

Today 9 Sep Block Island

Mostly sunny. Highs in the upper 70s. South Winds 5 to 10 Mph, increasing to 15 to 20 Mph this afternoon.

Tonight 9 Sep Block Island

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Breezy with Lows around 70. Southwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 40 percent.

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Block Island State Airport Temperature Statistics

September Temperature

Block Island State Airport (0 miles)

  • Lowest 7 September, 2026

    59 °F

  • Average September

    67.8 °F

  • Highest 4 September, 2026

    81 °F

Climate (2021–2026)

Block Island State Airport (0 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    57.5 °F
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