Merrimack River Mouth Weather Forecast

    • 69
    • 73

    Rain Showers

    • 61
    • 82

    Chance Rain Showers

    • 57
    • 73

    Sunny

    • 63
    • 70

    Slight Chance Thunderstorms

    • 65
    • 77

    Chance Rain Showers

    • 62
    • 75

    Partly Sunny

Today 9 Sep Eastern Essex

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the lower 70s. Southeast Winds 10 to 15 Mph.

Tonight 9 Sep Eastern Essex

Mostly cloudy. A chance of Showers this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Not as cool with Lows in the upper 60s. South Winds 15 to 20 Mph. Gusts up to 25 Mph, increasing to 35 Mph after midnight. Chance of rain 50 percent.

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Merrimack River Mouth Temperature Statistics

September Temperature

Beverly, Beverly Municipal Airport (16.8 miles)

  • Lowest 7 September, 2026

    54 °F

  • Average September

    65.8 °F

  • Highest 4 September, 2026

    81 °F

Climate (2021–2026)

Beverly, Beverly Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    59.7 °F
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