West Sayville Weather Forecast

    • 66
    • 76

    Rain Showers

    • 64
    • 78

    Rain Showers

    • 56
    • 75

    Slight Chance Rain Showers

    • 59
    • 72

    Mostly Sunny

    • 64
    • 75

    Partly Sunny

    • 65
    • 77

    Slight Chance Rain Showers

Today 12 Sep Southwest Suffolk

Sunny this Morning, then becoming partly sunny. Highs in the mid 70s. East Winds 5 to 10 Mph, becoming southeast this afternoon.

Tonight 12 Sep Southwest Suffolk

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

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  • Temperature Real-Time

West Sayville Temperature Statistics

September Temperature

Islip, Long Island Mac Arthur Airport (4.3 miles)

  • Lowest 7 September, 2026

    56.6 °F

  • Average September

    72.8 °F

  • Highest 3 September, 2026

    85.6 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (4.3 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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