Block Island Weather Forecast

    • 65
    • 73

    Chance Rain Showers

    • 66
    • 71

    Rain Showers

    • 62
    • 70

    Rain Showers

    • 60
    • 68

    Chance Rain Showers

    • 56
    • 67

    Chance Rain Showers

    • 54
    • 65

    Mostly Sunny

Today 28 Sep Block Island

Cloudy. Patchy fog. A slight chance of Showers. Highs in the lower 70s. South Winds around 10 Mph. Chance of rain 20 percent.

Tonight 28 Sep Block Island

Mostly cloudy. Patchy fog. Humid with Lows in the mid 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Block Island Temperature Statistics

September Temperature

Block Island State Airport (0.6 miles)

  • Lowest 19 September, 2020

    48.9 °F
  • Average September

    64.6 °F
  • Highest 4 September, 2020

    81 °F

Climate (2010–Present)

Block Island State Airport (0.6 miles)

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  • Average Low 2010–Present

    46.8 °F
  • Average 2010–Present

    52 °F
  • Average High 2010–Present

    57.3 °F
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