Long Beach (Stony Brook) Weather Forecast

    • 68
    • 73

    Rain Showers

    • 70
    • 82

    Rain Showers

    • 67
    • 82

    Slight Chance Rain Showers

    • 62
    • 77

    Mostly Sunny

    • 62
    • 74

    Mostly Sunny

    • 64
    • 75

    Partly Sunny

    • 64
    • 77

    Partly Sunny

Today 2 Sep Northwest Suffolk

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the lower 70s. East Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 2 Sep Northwest Suffolk

Cloudy. Showers likely with a chance of Thunderstorms after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 70 percent.

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Long Beach (Stony Brook) Temperature Statistics

September Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

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Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (9.3 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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