Fair Harbor Weather Forecast

    • 41
    • 45

    Mostly Sunny

    • 39
    • 55

    Becoming Sunny

    • 38
    • 48

    Mostly Sunny

    • 38
    • 45

    Partly Sunny

    • 41
    • 44

    Slight Chance Rain Showers

    • 44
    • 48

    Mostly Cloudy

    • 48
    • 51

    Chance Rain Showers

Today 9 Mar Southwest Suffolk

Sunny with a slight chance of Sprinkles. Highs in the upper 40s. Southwest Winds 15 to 20 Mph. Gusts up to 35 Mph.

Tonight 9 Mar Southwest Suffolk

Mostly clear. Lows in the upper 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Fair Harbor Temperature Statistics

March Temperature

Islip, Long Island Mac Arthur Airport (11.2 miles)

  • Lowest 3 March, 2025

    17.9 °F

  • Average March

    39.9 °F

  • Highest 6 March, 2025

    60.7 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (11.2 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    62.8 °F
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