Block Island - Charleston Beach Weather Forecast

    • 67
    • 76

    Thunderstorms

    • 68
    • 75

    Rain Showers

    • 66
    • 76

    Chance Rain Showers

    • 65
    • 78

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

    • 67
    • 76

    Partly Sunny

    • 69
    • 78

    Slight Chance Rain Showers

Today 30 Jun Block Island

Partly sunny. Near steady temperature in the lower 70s. South Winds 5 to 10 Mph.

Tonight 30 Jun Block Island

Mostly cloudy. Patchy fog. Scattered Showers and Thunderstorms after midnight. Near steady temperature in the upper 60s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

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Block Island - Charleston Beach Temperature Statistics

June Temperature

Block Island State Airport (1.9 miles)

  • Lowest 1 June, 2025

    51.1 °F

  • Average June

    64.7 °F

  • Highest 24 June, 2025

    90 °F

Climate (2020–Present)

Block Island State Airport (1.9 miles)

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  • Average Low 2020–2025

    47.2 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    57.9 °F
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