Mount Sinai Harbor Weather Forecast

    • 41
    • 51

    Sunny

    • 43
    • 54

    Mostly Sunny

    • 48
    • 56

    Mostly Cloudy

    • 54
    • 64

    Mostly Cloudy

    • 53
    • 68

    Mostly Cloudy

    • 53
    • 64

    Chance Rain Showers

Today 25 Apr Northwest Suffolk

Sunny. Highs in the lower 50s. Northeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph this afternoon.

Tonight 25 Apr Northwest Suffolk

Clear. Lows in the upper 30s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Sinai Harbor Temperature Statistics

April Temperature

Islip, Long Island Mac Arthur Airport (11.8 miles)

  • Lowest 5 April, 2024

    35.7 °F

  • Average April

    50.4 °F

  • Highest 15 April, 2024

    78.7 °F

Climate (2019–Present)

Islip, Long Island Mac Arthur Airport (11.8 miles)

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  • Average Low 2019–2024

    47.3 °F

  • Average 2019–2024

    54.9 °F

  • Average High 2019–2024

    62.5 °F
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