Fire Island (Moriches Bay) Weather Forecast

    • 54
    • 63

    Slight Chance Rain Showers

    • 58
    • 64

    Rain Showers

    • 52
    • 61

    Chance Rain Showers

    • 49
    • 58

    Chance Rain Showers

    • 49
    • 57

    Partly Sunny

    • 52
    • 57

    Mostly Cloudy

Today 20 Oct Southeast Suffolk

Partly sunny with a 20 percent chance of Showers. Highs in the mid 60s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 20 Oct Southeast Suffolk

Partly cloudy with a slight chance of Showers in the Evening, then clear after midnight. Lows in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fire Island (Moriches Bay) Temperature Statistics

October Temperature

Shirley, Brookhaven Airport (7.5 miles)

  • Lowest 9 October, 2025

    35.1 °F

  • Average October

    58.4 °F

  • Highest 5 October, 2025

    80.1 °F

Climate (2020–Present)

Shirley, Brookhaven Airport (7.5 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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