Callahans Beach Weather Forecast

    • 61
    • 78

    Increasing Clouds

    • 60
    • 84

    Mostly Sunny

    • 61
    • 77

    Mostly Sunny

    • 69
    • 85

    Mostly Sunny

    • 59
    • 85

    Chance Rain Showers

    • 55
    • 69

    Slight Chance Rain Showers

    • 53
    • 65

    Partly Sunny

Today 16 May Northwest Suffolk

Sunny. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 May Northwest Suffolk

Mostly clear in the Evening, then mostly cloudy with a chance of Sprinkles after midnight. Lows around 60. Southwest Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Callahans Beach Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (12.4 miles)

  • Lowest 1 May, 2026

    40.6 °F

  • Average May

    56.1 °F

  • Highest 5 May, 2026

    67.6 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (12.4 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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