West Islip Weather Forecast

    • 70
    • 80

    Mostly Cloudy

    • 69
    • 82

    Mostly Cloudy

    • 71
    • 81

    Slight Chance Thunderstorms

    • 72
    • 83

    Chance Thunderstorms

    • 73
    • 86

    Slight Chance Thunderstorms

    • 74
    • 86

    Slight Chance Thunderstorms

    • 74
    • 86

    Chance Rain Showers

Today 11 Jul Southwest Suffolk

Sunny. Near steady temperature in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 11 Jul Southwest Suffolk

Mostly cloudy. Lows around 70. Southeast Winds 5 to 10 Mph.

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West Islip Temperature Statistics

July Temperature

Farmingdale - Republic Airport (5.6 miles)

  • Lowest 4 July, 2025

    64.7 °F
  • Average July

    77.2 °F
  • Highest 8 July, 2025

    92.6 °F

Climate (2020–Present)

Farmingdale - Republic Airport (5.6 miles)

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  • Average Low 2020–2025

    48.7 °F
  • Average 2020–2025

    56.1 °F
  • Average High 2020–2025

    63.4 °F
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