Islandia Weather Forecast

    • 51
    • 68

    Chance Rain Showers

    • 49
    • 60

    Rain

    • 47
    • 57

    Rain

    • 49
    • 60

    Chance Rain Showers

    • 51
    • 65

    Slight Chance Rain Showers

    • 54
    • 69

    Partly Sunny

Today 20 May Southwest Suffolk

Mostly sunny. Highs in the upper 60s. North Winds around 15 Mph, Diminishing to 5 to 10 Mph this afternoon. Gusts up to 25 Mph.

Tonight 20 May Southwest Suffolk

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 50s. East Winds 5 to 10 Mph. Chance of rain 30 percent.

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Islandia Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (3.1 miles)

  • Lowest 1 May, 2025

    47.6 °F

  • Average May

    63.4 °F

  • Highest 11 May, 2025

    78.7 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (3.1 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63 °F
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