Long Island Mac Arthur Airport Weather Forecast

    • 32
    • 50

    Breezy

    • 39
    • 48

    Rain Showers

    • 33
    • 57

    Rain Showers

    • 24
    • 41

    Partly Sunny

    • 28
    • 37

    Mostly Cloudy

    • 32
    • 44

    Partly Sunny

    • 34
    • 47

    Chance Rain

Today 14 Mar Southwest Suffolk

Sunny. Highs around 50. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 14 Mar Southwest Suffolk

Partly cloudy. Lows in the lower 30s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph, decreasing to 20 Mph after midnight.

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Long Island Mac Arthur Airport Temperature Statistics

March Temperature

Islip, Long Island Mac Arthur Airport (0 miles)

  • Lowest 3 March, 2026

    18.6 °F

  • Average March

    40 °F

  • Highest 9 March, 2026

    66.9 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (0 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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