Fire Island Weather Forecast

    • 11
    • 22

    Blustery

    • 8
    • 18

    Mostly Sunny

    • 19
    • 21

    Blustery

    • 21
    • 26

    Chance Snow

    • 23
    • 31

    Partly Sunny

    • 22
    • 32

    Partly Sunny

Today 29 Jan Southwest Suffolk

Mostly sunny. Cold with Highs in the lower 20s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 3 below.

Tonight 29 Jan Southwest Suffolk

Partly cloudy. Lows 8 to 14 above. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 2 below.

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Fire Island Temperature Statistics

January Temperature

Islip, Long Island Mac Arthur Airport (9.9 miles)

  • Lowest 21 January, 2026

    8.7 °F

  • Average January

    33 °F

  • Highest 9 January, 2026

    51.7 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (9.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63.1 °F
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