Contoocook Weather Forecast

    • 44
    • 56

    Rain

    • 41
    • 66

    Mostly Cloudy

    • 40
    • 61

    Mostly Cloudy

    • 40
    • 62

    Partly Sunny

    • 42
    • 62

    Mostly Cloudy

    • 44
    • 62

    Chance Rain Showers

Today 20 Sep Merrimack

A slight chance of Showers this Morning, then rain this afternoon. Highs in the mid 50s. Light and variable Winds. Chance of rain near 100 percent.

Tonight 20 Sep Merrimack

Rain in the Evening, then a chance of Showers after midnight. Patchy fog after midnight. Lows in the mid 40s. Light and variable Winds. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Contoocook Temperature Statistics

September Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 15 September, 2026

    39.7 °F

  • Average September

    65.1 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Concord Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    60.2 °F
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