Long Beach (Stony Brook) Weather Forecast

    • 71
    • 86

    Chance Rain Showers

    • 70
    • 83

    Chance Rain Showers

    • 67
    • 83

    Partly Sunny

    • 67
    • 81

    Partly Sunny

    • 69
    • 81

    Rain Showers Likely

    • 68
    • 82

    Chance Rain Showers

    • 69
    • 82

    Mostly Sunny

Today 12 Aug Northwest Suffolk

Sunny. Highs in the upper 80s. West Winds 5 to 10 Mph.

Tonight 12 Aug Northwest Suffolk

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Lows around 70. Southwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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Long Beach (Stony Brook) Temperature Statistics

August Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

  • Lowest 4 August, 2026

    63.6 °F

  • Average August

    78.3 °F

  • Highest 7 August, 2026

    91.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (9.3 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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