Central Islip Weather Forecast

    • 50
    • 62

    Chance Rain Showers

    • 52
    • 66

    Partly Sunny

    • 52
    • 68

    Partly Sunny

    • 54
    • 71

    Partly Sunny

    • 55
    • 70

    Chance Rain Showers

    • 56
    • 68

    Chance Rain Showers

Today 23 May Southwest Suffolk

Mostly cloudy with a 20 percent chance of Showers. Highs in the lower 60s. West Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 23 May Southwest Suffolk

Mostly cloudy with a chance of Showers in the Evening, then partly cloudy after midnight. Lows around 50. West Winds 10 to 15 Mph. Gusts up to 25 Mph after midnight. Chance of rain 30 percent.

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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

    62.7 °F

  • Highest 11 May, 2025

    78.7 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63 °F
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