Block Island Sound Weather Forecast

    • 35
    • 38

    Rain

    • 35
    • 39

    Chance Rain

    • 43
    • 45

    Rain Showers Likely

    • 39
    • 49

    Partly Sunny

    • 43
    • 48

    Partly Sunny

    • 43
    • 50

    Mostly Cloudy

Today 5 Mar Northeast Suffolk

Rain. Patchy fog. Highs in the upper 30s. Northeast Winds around 5 Mph, increasing to 10 to 15 Mph this afternoon. Chance of rain near 100 percent.

Tonight 5 Mar Northeast Suffolk

Rain. Patchy fog. Lows in the mid 30s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Block Island Sound Temperature Statistics

March Temperature

Westerly, Westerly State Airport (7.5 miles)

  • Lowest 2 March, 2026

    12 °F

  • Average March

    26.6 °F

  • Highest 1 March, 2026

    37.9 °F

Climate (2021–Present)

Westerly, Westerly State Airport (7.5 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    60.3 °F
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