Contoocook Weather Forecast

    • 59
    • 77

    Rain Showers Likely

    • 43
    • 72

    Mostly Sunny

    • 45
    • 65

    Chance Rain Showers

    • 45
    • 60

    Rain Showers Likely

    • 45
    • 64

    Slight Chance Rain Showers

    • 44
    • 63

    Slight Chance Rain Showers

Today 17 Sep Merrimack

Mostly cloudy. A chance of Showers in the afternoon. Highs in the mid 70s. Light and variable Winds. Chance of rain 50 percent.

Tonight 17 Sep Merrimack

Cloudy with Showers likely in the Evening, then partly cloudy with a chance of Showers after midnight. Lows in the upper 50s. Light and variable Winds. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Contoocook Temperature Statistics

September Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 12 September, 2026

    41.6 °F

  • Average September

    65.7 °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

    38.2 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    60.2 °F
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