Fair Harbor Weather Forecast

    • 17
    • 23

    Blustery

    • 18
    • 24

    Blustery

    • 21
    • 31

    Mostly Sunny

    • 24
    • 31

    Partly Sunny

    • 21
    • 30

    Mostly Cloudy

    • 21
    • 29

    Chance Snow

Today 31 Jan Southwest Suffolk

Partly sunny. Cold with Highs in the lower 20s. North Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Wind chill Values as low as 6 below this morning.

Tonight 31 Jan Southwest Suffolk

Mostly cloudy. A slight chance of snow after midnight. Blustery with Lows around 14. North Winds 15 to 25 Mph. Gusts up to 30 Mph, increasing to 40 Mph after midnight. Chance of snow 20 percent. Wind chill Values as low as 4 below.

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Fair Harbor Temperature Statistics

January Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 21 January, 2026

    8.7 °F

  • Average January

    32 °F

  • Highest 9 January, 2026

    51.7 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (11.2 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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