Merrimac Weather Forecast

    • 65
    • 83

    Mostly Cloudy

    • 71
    • 92

    Mostly Sunny

    • 70
    • 93

    Chance Thunderstorms

    • 67
    • 83

    Chance Thunderstorms

    • 64
    • 83

    Slight Chance Thunderstorms

    • 64
    • 78

    Chance Rain Showers

Today 5 Jul Western Essex

Mostly sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph.

Tonight 5 Jul Western Essex

Partly cloudy. Not as cool with Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merrimac Temperature Statistics

July Temperature

Lawrence Municipal Airport (9.9 miles)

  • Lowest 3 July, 2025

    64.9 °F

  • Average July

    76.7 °F

  • Highest 1 July, 2025

    90 °F

Climate (2020–Present)

Lawrence Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    61.2 °F
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