Smithtown Bay Weather Forecast

    • 41
    • 45

    Increasing Clouds

    • 45
    • 51

    Rain

    • 35
    • 50

    Chance Rain Showers

    • 38
    • 45

    Partly Sunny

    • 32
    • 43

    Partly Sunny

    • 29
    • 38

    Partly Sunny

    • 36
    • 42

    Partly Sunny

Today 4 Mar Northwest Suffolk

Partly sunny. Highs in the upper 40s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 4 Mar Northwest Suffolk

Partly cloudy. Lows in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Smithtown Bay Temperature Statistics

March Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 2 March, 2025

    21 °F

  • Average March

    36 °F

  • Highest 1 March, 2025

    53.7 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    62.8 °F
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