Long Beach (Stony Brook) Weather Forecast

    • 70
    • 80

    Mostly Sunny

    • 62
    • 81

    Rain Showers

    • 58
    • 73

    Chance Rain Showers

    • 57
    • 73

    Mostly Sunny

    • 57
    • 72

    Partly Sunny

    • 58
    • 72

    Partly Sunny

Today 5 Sep Northwest Suffolk

Sunny with Highs in the lower 80s. South Winds 10 to 15 Mph.

Tonight 5 Sep Northwest Suffolk

Mostly clear. Humid with Lows in the upper 60s. South Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Beach (Stony Brook) Temperature Statistics

September Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

  • Lowest 2 September, 2025

    57.9 °F

  • Average September

    67.6 °F

  • Highest 1 September, 2025

    77 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (9.3 miles)

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

  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63.1 °F
Get WillyWeather+ to remove ads