Central Islip Weather Forecast

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    Increasing Clouds

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    Chance Rain Showers

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    • 66

    Rain

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    • 70

    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

Today 12 May Southwest Suffolk

Sunny. Highs in the upper 60s. Southeast Winds 5 to 10 Mph.

Tonight 12 May Southwest Suffolk

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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Central Islip Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (5 miles)

  • Lowest 1 May, 2025

    47.6 °F

  • Average May

    62.2 °F

  • Highest 8 May, 2025

    77.6 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63 °F
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