Plum Island Weather Forecast

    • 55
    • 67

    Becoming Sunny

    • 62
    • 76

    Partly Sunny

    • 58
    • 74

    Partly Sunny

    • 57
    • 76

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 64
    • 78

    Partly Sunny

Today 30 May Eastern Monmouth

Sunny. Not as warm with Highs in the upper 60s. North Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 30 May Eastern Monmouth

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.

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Plum Island Temperature Statistics

May Temperature

Belmar-Farmingdale (17.4 miles)

  • Lowest 12 May, 2026

    42.1 °F

  • Average May

    62.4 °F

  • Highest 19 May, 2026

    96.1 °F

Climate (2021–Present)

Belmar-Farmingdale (17.4 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    63.6 °F
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