Block Island Weather Forecast

    • 70
    • 79

    Patchy Fog

    • 72
    • 78

    Patchy Fog

    • 72
    • 78

    Partly Sunny

    • 69
    • 78

    Partly Sunny

    • 68
    • 77

    Mostly Sunny

    • 69
    • 77

    Partly Sunny

    • 67
    • 77

    Chance Rain Showers

Today 5 Aug Block Island

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

Tonight 5 Aug Block Island

Partly cloudy this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows around 70. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Block Island Temperature Statistics

August Temperature

Block Island State Airport (0.6 miles)

  • Lowest 1 August, 2026

    68 °F

  • Average August

    72.6 °F

  • Highest 1 August, 2026

    77 °F

Climate (2021–2026)

Block Island State Airport (0.6 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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