West Islip Weather Forecast

    • 30
    • 35

    Chance Freezing Drizzle

    • 29
    • 42

    Chance Drizzle

    • 27
    • 41

    Mostly Cloudy

    • 20
    • 33

    Mostly Sunny

    • 32
    • 39

    Mostly Cloudy

    • 36
    • 48

    Rain Likely

    • 29
    • 45

    Chance Rain

Today 5 Dec Southwest Suffolk

Mostly cloudy. Highs in the mid 30s. East Winds 5 to 10 Mph.

Tonight 5 Dec Southwest Suffolk

Cloudy. A slight chance of very light Drizzle, freezing drizzle and light snow late this Evening, then a chance of very light drizzle and freezing drizzle after midnight. Near steady temperature in the lower 30s. Northeast Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Islip Temperature Statistics

December Temperature

Farmingdale - Republic Airport (5.6 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    36.9 °F

  • Highest 2 December, 2025

    45 °F

Climate (2020–Present)

Farmingdale - Republic Airport (5.6 miles)

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  • Average Low 2020–2025

    48.4 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    63.3 °F
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