Mastic Beach Weather Forecast

    • 45
    • 57

    Sunny

    • 45
    • 62

    Mostly Sunny

    • 51
    • 63

    Partly Sunny

    • 54
    • 68

    Rain Showers Likely

    • 50
    • 66

    Chance Rain Showers

    • 52
    • 66

    Chance Rain Showers

    • 48
    • 63

    Chance Rain Showers

Today 16 Oct Southeast Suffolk

Sunny. Near steady temperature in the mid 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 16 Oct Southeast Suffolk

Clear, breezy with Lows in the mid 40s. North Winds 15 to 25 Mph with Gusts up to 35 Mph.

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  • Temperature Real-Time

Mastic Beach Temperature Statistics

October Temperature

Shirley, Brookhaven Airport (3.7 miles)

  • Lowest 9 October, 2025

    35.1 °F

  • Average October

    59.8 °F

  • Highest 5 October, 2025

    80.1 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (3.7 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    63 °F
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