Old Mastic Weather Forecast

    • 50
    • 57

    Chance Rain Showers

    • 54
    • 63

    Chance Rain Showers

    • 52
    • 63

    Rain Showers Likely

    • 49
    • 60

    Chance Rain Showers

    • 49
    • 58

    Chance Rain Showers

    • 53
    • 61

    Chance Rain Showers

Today 1 May Southeast Suffolk

Sunny. Highs in the upper 50s. East Winds 5 to 10 Mph, becoming southeast in the afternoon.

Tonight 1 May Southeast Suffolk

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Lows around 50. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Old Mastic Temperature Statistics

May Temperature

Shirley, Brookhaven Airport (3.1 miles)

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  • Average May

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Climate (2020–Present)

Shirley, Brookhaven Airport (3.1 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    62.9 °F
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