Mount Sinai Harbor Weather Forecast

    • 55
    • 63

    Mostly Sunny

    • 57
    • 66

    Breezy

    • 49
    • 61

    Rain

    • 46
    • 57

    Rain Showers Likely

    • 49
    • 60

    Slight Chance Rain Showers

    • 49
    • 60

    Chance Rain Showers

Today 4 May Northwest Suffolk

Sunny. Highs in the upper 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 4 May Northwest Suffolk

Mostly clear. Lows in the lower 50s. South Winds 15 to 20 Mph. Gusts up to 30 Mph in the evening.

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Mount Sinai Harbor Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average May

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Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63 °F
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