Long Beach (Stony Brook) Weather Forecast

    • 74
    • 92

    Slight Chance Thunderstorms

    • 72
    • 89

    Areas Smoke

    • 71
    • 86

    Chance Rain Showers

    • 71
    • 82

    Rain Showers Likely

    • 70
    • 85

    Chance Rain Showers

    • 71
    • 84

    Chance Rain Showers

Today 15 Jul Northwest Suffolk

Sunny. Patchy smoke this Morning, then Areas of smoke this afternoon. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the mid 90s. West Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 103.

Tonight 15 Jul Northwest Suffolk

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms. Areas of smoke. Lows in the mid 70s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight. Chance of rain 20 percent.

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Long Beach (Stony Brook) Temperature Statistics

July Temperature

Islip, Long Island Mac Arthur Airport (9.3 miles)

  • Lowest 7 July, 2026

    63.6 °F

  • Average July

    76.4 °F

  • Highest 3 July, 2026

    98.7 °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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