Holbrook Weather Forecast

    • 62
    • 78

    Isolated Thunderstorms

    • 56
    • 80

    Mostly Sunny

    • 57
    • 78

    Chance Rain Showers

    • 52
    • 75

    Partly Sunny

    • 56
    • 73

    Partly Sunny

    • 54
    • 72

    Partly Sunny

Today 27 May Southwest Suffolk

Mostly cloudy. Patchy fog. Highs in the mid 70s. Southwest Winds 10 to 15 Mph.

Tonight 27 May Southwest Suffolk

Mostly cloudy. Isolated Showers or Thunderstorms this evening. Lows in the lower 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming north 5 to 10 Mph after midnight. Chance of rain 20 percent.

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Holbrook Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (1.2 miles)

  • Lowest 1 May, 2026

    40.6 °F

  • Average May

    59.8 °F

  • Highest 20 May, 2026

    93.7 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (1.2 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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