Islip Weather Forecast

    • 35
    • 55

    Chance Rain Showers

    • 33
    • 46

    Partly Sunny

    • 38
    • 49

    Mostly Sunny

    • 37
    • 51

    Chance Rain Showers

    • 35
    • 49

    Chance Rain

    • 35
    • 48

    Chance Rain

Today 1 Dec Southwest Suffolk

Mostly cloudy. A slight chance of Showers this morning. A chance of Showers this afternoon. Breezy with Highs in the mid 50s. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 30 percent.

Tonight 1 Dec Southwest Suffolk

Mostly cloudy and breezy. Lows in the mid 30s. Southwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

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Islip Temperature Statistics

December Temperature

Islip, Long Island Mac Arthur Airport (6.8 miles)

  • Lowest

  • Average December

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Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (6.8 miles)

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  • Average Low 2010–Present

    47.5 °F
  • Average 2010–Present

    54.8 °F
  • Average High 2010–Present

    62.1 °F
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