Long Island Mac Arthur Airport Weather Forecast

    • 44
    • 60

    Mostly Sunny

    • 43
    • 60

    Mostly Sunny

    • 43
    • 57

    Partly Sunny

    • 41
    • 56

    Partly Sunny

    • 42
    • 54

    Partly Sunny

    • 44
    • 55

    Partly Sunny

Today 23 Oct Southwest Suffolk

Mostly sunny. Highs around 60. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Oct Southwest Suffolk

Partly cloudy in the Evening, then clearing. Lows in the mid 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Long Island Mac Arthur Airport Temperature Statistics

October Temperature

Islip, Long Island Mac Arthur Airport (0 miles)

  • Lowest 10 October, 2025

    42.1 °F

  • Average October

    61.3 °F

  • Highest 4 October, 2025

    82 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (0 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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