Bethpage State Park Weather Forecast

    • 63
    • 80

    Becoming Sunny

    • 58
    • 83

    Mostly Sunny

    • 55
    • 73

    Mostly Sunny

    • 58
    • 71

    Partly Sunny

    • 61
    • 75

    Partly Sunny

    • 63
    • 78

    Partly Sunny

Today 18 Sep Southern Nassau

Patchy fog in the morning. Mostly cloudy with a chance of Showers in the Morning, then mostly sunny in the afternoon. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming west in the afternoon. Chance of rain 30 percent.

Tonight 18 Sep Southern Nassau

Mostly clear. Lows in the mid 60s. West Winds around 5 Mph.

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Bethpage State Park Temperature Statistics

September Temperature

Farmingdale - Republic Airport (2.5 miles)

  • Lowest 9 September, 2025

    53.1 °F

  • Average September

    67.3 °F

  • Highest 5 September, 2025

    80.1 °F

Climate (2020–Present)

Farmingdale - Republic Airport (2.5 miles)

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  • Average Low 2020–2025

    48.5 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    63.4 °F
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