Callahans Beach Weather Forecast

    • 70
    • 85

    Mostly Sunny

    • 66
    • 81

    Rain Showers Likely

    • 66
    • 79

    Chance Rain Showers

    • 68
    • 79

    Rain Showers Likely

    • 66
    • 82

    Chance Thunderstorms

    • 64
    • 81

    Mostly Sunny

    • 65
    • 80

    Partly Sunny

Today 19 Aug Northwest Suffolk

Sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph.

Tonight 19 Aug Northwest Suffolk

Mostly clear. Humid with Lows around 70. Southwest Winds 5 to 10 Mph.

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Callahans Beach Temperature Statistics

August Temperature

Islip, Long Island Mac Arthur Airport (12.4 miles)

  • Lowest 4 August, 2026

    63.6 °F

  • Average August

    77.5 °F

  • Highest 7 August, 2026

    91.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (12.4 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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