Southwest Point Weather Forecast

    • 50
    • 55

    Rain Showers

    • 54
    • 61

    Mostly Sunny

    • 53
    • 64

    Mostly Sunny

    • 54
    • 64

    Partly Sunny

    • 57
    • 66

    Mostly Sunny

    • 54
    • 66

    Slight Chance Rain Showers

Today 15 May Block Island

Mostly cloudy. Patchy drizzle this Morning, then scattered Showers this afternoon. Patchy fog this morning. Highs in the mid 50s. Northwest Winds 5 to 10 Mph, becoming west this afternoon. Chance of rain 30 percent.

Tonight 15 May Block Island

Mostly cloudy with isolated Showers in the Evening, then partly cloudy after midnight. Patchy fog. Lows around 50. North Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Southwest Point Temperature Statistics

May Temperature

Block Island State Airport (1.9 miles)

  • Lowest 1 May, 2026

    44.1 °F

  • Average May

    50.7 °F

  • Highest 7 May, 2026

    59 °F

Climate (2021–Present)

Block Island State Airport (1.9 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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