Plum Island Weather Forecast

    • 64
    • 76

    Slight Chance Thunderstorms

    • 64
    • 78

    Rain Showers

    • 61
    • 74

    Slight Chance Rain Showers

    • 62
    • 73

    Partly Sunny

    • 63
    • 73

    Mostly Cloudy

    • 63
    • 74

    Chance Rain Showers

Today 4 Jul Door

Humid. Partly sunny with a chance of Showers and Thunderstorms. Highs in the lower 80s. South wind 10 to 15 Mph. Chance of rain 30 percent.

Tonight 4 Jul Door

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the middle 60s. South wind 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plum Island Temperature Statistics

July Temperature

Ephraim-Gibraltar Airport (16.2 miles)

  • Lowest 1 July, 2025

    61.2 °F

  • Average July

    70.3 °F

  • Highest 1 July, 2025

    81.5 °F

Climate (2020–Present)

Ephraim-Gibraltar Airport (16.2 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    52.8 °F
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