Fire Island (Moriches Bay) Weather Forecast

    • 72
    • 76

    Chance Thunderstorms

    • 70
    • 78

    Chance Thunderstorms

    • 66
    • 76

    Mostly Sunny

    • 69
    • 73

    Partly Sunny

    • 71
    • 75

    Partly Sunny

    • 73
    • 76

    Mostly Cloudy

Today 19 Jul Southeast Suffolk

Sunny. Highs around 80. Southeast Winds around 5 Mph, becoming south in the afternoon.

Tonight 19 Jul Southeast Suffolk

Mostly clear. Lows in the lower 60s. Northeast Winds around 5 Mph.

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Fire Island (Moriches Bay) Temperature Statistics

July Temperature

Shirley, Brookhaven Airport (7.5 miles)

  • Lowest 5 July, 2025

    59.6 °F
  • Average July

    76.5 °F
  • Highest 8 July, 2025

    90.6 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (7.5 miles)

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  • Average Low 2020–2025

    46.8 °F
  • Average 2020–2025

    55 °F
  • Average High 2020–2025

    63 °F
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