Merrimack River Mouth Weather Forecast

    • 59
    • 70

    Increasing Clouds

    • 59
    • 71

    Slight Chance Rain Showers

    • 56
    • 70

    Mostly Sunny

    • 58
    • 73

    Mostly Sunny

    • 59
    • 74

    Mostly Cloudy

    • 61
    • 72

    Partly Sunny

Today 13 Sep Eastern Essex

Sunny. Highs in the lower 70s. South Winds 5 to 10 Mph. Gusts up to 20 Mph.

Tonight 13 Sep Eastern Essex

Partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Merrimack River Mouth Temperature Statistics

September Temperature

Beverly, Beverly Municipal Airport (16.8 miles)

  • Lowest 9 September, 2025

    46.9 °F

  • Average September

    64 °F

  • Highest 6 September, 2025

    84 °F

Climate (2020–Present)

Beverly, Beverly Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    60.2 °F
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