Central Islip Weather Forecast

    • 39
    • 54

    Rain Showers

    • 31
    • 52

    Chance Rain Showers

    • 40
    • 52

    Slight Chance Rain Showers

    • 44
    • 58

    Partly Sunny

    • 46
    • 65

    Partly Sunny

    • 45
    • 60

    Partly Sunny

Today 19 Apr Southwest Suffolk

Patchy fog this morning. A chance of Showers this Morning, then Showers this afternoon. Highs in the mid 50s. Southwest Winds 10 to 15 Mph, becoming northwest 15 to 20 Mph this afternoon. Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 19 Apr Southwest Suffolk

Partly cloudy with a chance of Showers in the Evening, then mostly clear after midnight. Lows around 40. West Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of rain 50 percent.

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Central Islip Temperature Statistics

April Temperature

Islip, Long Island Mac Arthur Airport (5 miles)

  • Lowest 9 April, 2026

    27.6 °F

  • Average April

    52.7 °F

  • Highest 16 April, 2026

    82.7 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
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