Great South Bay Weather Forecast

    • 41
    • 60

    Mostly Sunny

    • 44
    • 62

    Sunny

    • 53
    • 64

    Mostly Sunny

    • 49
    • 59

    Partly Sunny

    • 53
    • 58

    Mostly Cloudy

    • 56
    • 62

    Partly Sunny

Today 24 Oct Southwest Suffolk

Patchy frost this morning. Partly sunny. Highs in the lower 60s. North Winds around 5 Mph, becoming northwest this afternoon.

Tonight 24 Oct Southwest Suffolk

Mostly clear. Lows around 40. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Great South Bay Temperature Statistics

October Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 19 October, 2026

    39 °F

  • Average October

    60 °F

  • Highest 14 October, 2026

    82.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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

  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
Get WillyWeather+ to remove ads