Block Island Weather Forecast

    • 37
    • 45

    Decreasing Clouds

    • 35
    • 47

    Slight Chance Rain

    • 38
    • 45

    Chance Rain

    • 29
    • 45

    Partly Sunny

    • 32
    • 40

    Partly Sunny

    • 32
    • 42

    Slight Chance Rain

Today 20 Mar Block Island

Mostly sunny. Highs in the lower 40s. West Winds around 5 Mph, increasing to south 15 to 20 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 20 Mar Block Island

Mostly cloudy. Near steady temperature in the upper 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Block Island Temperature Statistics

March Temperature

Block Island State Airport (0 miles)

  • Lowest 2 March, 2026

    18 °F

  • Average March

    37.7 °F

  • Highest 9 March, 2026

    59 °F

Climate (2021–Present)

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

    57.6 °F
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