Stony Brook Weather Forecast

    • 42
    • 59

    Mostly Sunny

    • 47
    • 60

    Mostly Sunny

    • 46
    • 59

    Partly Sunny

    • 42
    • 59

    Rain

    • 37
    • 49

    Rain Likely

    • 37
    • 48

    Mostly Cloudy

    • 38
    • 51

    Partly Sunny

Today 9 Nov Northwest Suffolk

Mostly sunny. Highs in the lower 50s.

Tonight 9 Nov Northwest Suffolk

Mostly clear. Lows around 40. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Stony Brook Temperature Statistics

November Temperature

Islip, Long Island Mac Arthur Airport (8.7 miles)

  • Lowest 1 November, 2026

    36.6 °F

  • Average November

    57.4 °F

  • Highest 4 November, 2026

    69.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (8.7 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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