Brookhaven Weather Forecast

    • 70
    • 85

    Chance Thunderstorms

    • 67
    • 83

    Mostly Sunny

    • 66
    • 80

    Mostly Sunny

    • 67
    • 84

    Mostly Cloudy

    • 64
    • 79

    Slight Chance Rain Showers

    • 64
    • 78

    Slight Chance Thunderstorms

Today 14 Aug Southwest Suffolk

Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the lower 80s. Southwest Winds around 5 Mph. Chance of rain 30 percent.

Tonight 14 Aug Southwest Suffolk

Partly cloudy with a slight chance of Showers in the Evening, then mostly clear after midnight. Humid with Lows around 70. Southwest Winds around 5 Mph, becoming north after midnight. Chance of rain 20 percent.

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Brookhaven Temperature Statistics

August Temperature

Shirley, Brookhaven Airport (3.7 miles)

  • Lowest 9 August, 2025

    51.7 °F
  • Average August

    69.4 °F
  • Highest 4 August, 2025

    86.6 °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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