West Sayville Weather Forecast

    • 64
    • 75

    Rain Showers Likely

    • 61
    • 75

    Chance Rain Showers

    • 65
    • 79

    Mostly Sunny

    • 66
    • 79

    Mostly Sunny

    • 67
    • 79

    Chance Rain Showers

    • 64
    • 80

    Chance Rain Showers

Today 20 Aug Southwest Suffolk

Partly sunny with a chance of Showers in the Morning, then mostly cloudy with Showers likely with a chance of Thunderstorms in the afternoon. Highs in the mid 70s. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Tonight 20 Aug Southwest Suffolk

Showers likely with a chance of Thunderstorms. Lows in the mid 60s. East Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 60 percent.

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West Sayville Temperature Statistics

August Temperature

Islip, Long Island Mac Arthur Airport (4.3 miles)

  • Lowest 9 August, 2025

    56.6 °F

  • Average August

    75.2 °F

  • Highest 4 August, 2025

    89.7 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (4.3 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63.1 °F
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