Long Beach (Stony Brook) Weather Forecast

    • 64
    • 80

    Gradual Clearing

    • 59
    • 77

    Mostly Sunny

    • 60
    • 77

    Chance Rain Showers

    • 53
    • 74

    Partly Sunny

    • 57
    • 71

    Partly Sunny

    • 56
    • 70

    Partly Sunny

Today 27 May Northwest Suffolk

Mostly cloudy with a 20 percent chance of Showers. Highs in the lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 27 May Northwest Suffolk

Mostly cloudy with a slight chance of Showers with isolated Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the lower 60s. West Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Long Beach (Stony Brook) Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

  • Lowest 1 May, 2026

    40.6 °F

  • Average May

    59.8 °F

  • Highest 20 May, 2026

    93.7 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (9.3 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
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