Long Island Mac Arthur Airport Weather Forecast

    • 80
    • 96

    Partly Sunny

    • 76
    • 95

    Chance Thunderstorms

    • 73
    • 84

    Thunderstorms Likely

    • 67
    • 81

    Chance Thunderstorms

    • 68
    • 83

    Partly Sunny

    • 69
    • 85

    Slight Chance Thunderstorms

Today 20 Jul Southwest Suffolk

Mostly sunny. Highs in the mid 90s. West Winds around 10 Mph, becoming southwest with Gusts up to 25 Mph this afternoon. Heat index Values up to 108.

Tonight 20 Jul Southwest Suffolk

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Humid with Lows in the upper 70s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of rain 20 percent.

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Long Island Mac Arthur Airport Temperature Statistics

July Temperature

Islip, Long Island Mac Arthur Airport (0 miles)

  • Lowest 9 July, 2019

    64 °F

  • Average July

    77.4 °F

  • Highest 14 July, 2019

    91.9 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (0 miles)

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  • Average Low 2010–Present

    46.1 °F

  • Average 2010–Present

    53.6 °F

  • Average High 2010–Present

    61.1 °F
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