Hopkinton Weather Forecast

    • 47
    • 77

    Increasing Clouds

    • 51
    • 74

    Mostly Cloudy

    • 55
    • 80

    Partly Sunny

    • 42
    • 75

    Mostly Sunny

    • 40
    • 67

    Mostly Sunny

    • 47
    • 72

    Partly Sunny

Today 16 Sep Merrimack

Areas of fog in the morning. Mostly sunny. Visibility one quarter mile or less at Times in the morning. Highs in the upper 70s. Light and variable Winds.

Tonight 16 Sep Merrimack

Partly cloudy. Patchy fog after midnight. Lows in the upper 40s. Light and variable Winds.

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Hopkinton Temperature Statistics

September Temperature

Concord Municipal Airport (8.7 miles)

  • Lowest 9 September, 2025

    41 °F

  • Average September

    62.9 °F

  • Highest 6 September, 2025

    82.9 °F

Climate (2020–Present)

Concord Municipal Airport (8.7 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
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