Fire Island Weather Forecast

    • 47
    • 58

    Increasing Clouds

    • 52
    • 59

    Mostly Sunny

    • 55
    • 62

    Partly Sunny

    • 58
    • 63

    Partly Sunny

    • 60
    • 65

    Mostly Cloudy

    • 60
    • 66

    Rain Showers Likely

    • 56
    • 65

    Chance Rain Showers

Today 31 Oct Southwest Suffolk

Mostly cloudy in the Morning, then becoming partly sunny. A 50 percent chance of Showers. Highs in the lower 60s.

Tonight 31 Oct Southwest Suffolk

Mostly clear this Evening, then becoming partly cloudy. Patchy frost after midnight. Lows in the upper 30s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fire Island Temperature Statistics

October Temperature

Islip, Long Island Mac Arthur Airport (9.9 miles)

  • Lowest 25 October, 2026

    36.6 °F

  • Average October

    58 °F

  • Highest 14 October, 2026

    82.7 °F

Climate (2021–2026)

Islip, Long Island Mac Arthur Airport (9.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
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