Mount Sinai Harbor Weather Forecast

    • 43
    • 53

    Breezy

    • 57
    • 60

    Breezy

    • 53
    • 63

    Chance Rain

    • 44
    • 60

    Rain Likely

    • 38
    • 48

    Slight Chance Rain/Snow

    • 41
    • 46

    Breezy

Today 6 Nov Northwest Suffolk

Sunny, breezy with Highs in the lower 50s. Northwest Winds 15 to 25 Mph. Gusts up to 45 Mph, decreasing to 30 Mph this afternoon.

Tonight 6 Nov Northwest Suffolk

Mostly clear in the Evening, then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. Northwest Winds 10 to 15 Mph, becoming west around 5 Mph after midnight.

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  • Temperature Real-Time

Mount Sinai Harbor Temperature Statistics

November Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

  • Lowest 2 November, 2025

    37 °F

  • Average November

    51.8 °F

  • Highest 1 November, 2025

    60.1 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    63.2 °F
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