Brentwood Weather Forecast

    • 42
    • 60

    Mostly Sunny

    • 46
    • 65

    Partly Sunny

    • 51
    • 67

    Partly Sunny

    • 54
    • 69

    Partly Sunny

    • 56
    • 69

    Rain Likely

    • 51
    • 67

    Rain Likely

Today 1 Nov Southwest Suffolk

Sunny. Highs in the upper 50s. North Winds 5 to 10 Mph, becoming west this afternoon.

Tonight 1 Nov Southwest Suffolk

Mostly clear. Lows in the lower 40s. West Winds 5 to 10 Mph.

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Brentwood Temperature Statistics

November Temperature

Islip, Long Island Mac Arthur Airport (7.5 miles)

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  • Average November

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Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (7.5 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
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