Merrimack River - Deer Island Weather Forecast

    • 48
    • 78

    Increasing Clouds

    • 46
    • 62

    Mostly Sunny

    • 52
    • 63

    Rain Showers

    • 51
    • 64

    Mostly Cloudy

    • 50
    • 60

    Slight Chance Rain Showers

    • 49
    • 60

    Slight Chance Rain Showers

Today 18 Sep Eastern Essex

Sunny. Near steady temperature in the upper 70s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 18 Sep Eastern Essex

Partly cloudy. Much cooler with Lows in the upper 40s. North Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Real-Time

Merrimack River - Deer Island Temperature Statistics

September Temperature

Lawrence Municipal Airport (13.7 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    65.8 °F

  • Highest 10 September, 2026

    86 °F

Climate (2021–2026)

Lawrence Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    60.9 °F
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