Contoocook Weather Forecast

    • 57
    • 80

    Decreasing Clouds

    • 50
    • 73

    Rain Showers Likely

    • 49
    • 71

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 51
    • 75

    Mostly Cloudy

    • 60
    • 74

    Chance Rain Showers

    • 52
    • 77

    Slight Chance Thunderstorms

Today 4 Sep Merrimack

Partly sunny. Highs in the upper 70s. Northwest Winds around 10 Mph.

Tonight 4 Sep Merrimack

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. Northwest Winds around 10 Mph in the Evening, becoming light and variable.

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Contoocook Temperature Statistics

September Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 1 September, 2026

    58.6 °F

  • Average September

    65.2 °F

  • Highest 2 September, 2026

    72 °F

Climate (2021–2026)

Concord Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    60.2 °F
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