Old Harbor Weather Forecast

    • 59
    • 63

    Rain Showers Likely

    • 54
    • 63

    Rain Showers

    • 51
    • 60

    Chance Rain Showers

    • 49
    • 58

    Partly Sunny

    • 48
    • 57

    Partly Sunny

    • 48
    • 55

    Partly Sunny

Today 21 Oct Block Island

Sunny. Highs in the lower 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 21 Oct Block Island

Partly cloudy in the Evening, then mostly cloudy with Showers likely after midnight. Near steady temperature in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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Old Harbor Temperature Statistics

October Temperature

Block Island State Airport (1.2 miles)

  • Lowest 16 October, 2025

    45 °F

  • Average October

    58.5 °F

  • Highest 5 October, 2025

    75 °F

Climate (2020–Present)

Block Island State Airport (1.2 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    57.8 °F
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