Allaire State Park Weather Forecast

    • 60
    • 79

    Becoming Sunny

    • 59
    • 84

    Mostly Sunny

    • 57
    • 71

    Mostly Sunny

    • 58
    • 71

    Partly Sunny

    • 59
    • 75

    Partly Sunny

    • 60
    • 78

    Partly Sunny

Today 18 Sep Western Monmouth

Areas of fog in the morning. Mostly cloudy with a slight chance of Showers in the Morning, then mostly sunny in the afternoon. Warmer with Highs around 80. North Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Sep Western Monmouth

Mostly clear. Lows in the upper 50s. Southwest Winds around 5 Mph.

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Allaire State Park Temperature Statistics

September Temperature

Belmar-Farmingdale (1.2 miles)

  • Lowest 8 September, 2025

    53.1 °F

  • Average September

    67.3 °F

  • Highest 6 September, 2025

    87.1 °F

Climate (2020–Present)

Belmar-Farmingdale (1.2 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    63.8 °F
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