Sayville Weather Forecast

    • 55
    • 63

    Mostly Cloudy

    • 58
    • 67

    Rain Likely

    • 56
    • 64

    Rain

    • 56
    • 66

    Rain

    • 54
    • 66

    Chance Rain Showers

    • 50
    • 66

    Slight Chance Rain Showers

Today 10 Oct Southwest Suffolk

Mostly sunny. Highs in the lower 60s. East Winds 5 to 10 Mph, becoming southeast this afternoon.

Tonight 10 Oct Southwest Suffolk

Mostly cloudy. Lows in the mid 50s. Southeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sayville Temperature Statistics

October Temperature

Islip, Long Island Mac Arthur Airport (3.7 miles)

  • Lowest 3 October, 2025

    48 °F

  • Average October

    65.5 °F

  • Highest 4 October, 2025

    82 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    63.2 °F
Get WillyWeather+ to remove ads