Fire Island (Moriches Bay) Weather Forecast

    • 59
    • 73

    Mostly Cloudy

    • 59
    • 72

    Mostly Sunny

    • 67
    • 75

    Mostly Sunny

    • 69
    • 74

    Chance Rain Showers

    • 69
    • 78

    Rain Showers Likely

    • 69
    • 78

    Slight Chance Thunderstorms

    • 69
    • 79

    Partly Sunny

Today 24 Jul Southeast Suffolk

Sunny. Near steady temperature in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 24 Jul Southeast Suffolk

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Southeast Winds around 5 Mph, becoming east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fire Island (Moriches Bay) Temperature Statistics

July Temperature

Shirley, Brookhaven Airport (7.5 miles)

  • Lowest 20 July, 2026

    57.9 °F

  • Average July

    75 °F

  • Highest 3 July, 2026

    98.1 °F

Climate (2021–2026)

Shirley, Brookhaven Airport (7.5 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    62.5 °F
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