Contoocook Weather Forecast

    • 64
    • 84

    Chance Thunderstorms

    • 53
    • 82

    Chance Thunderstorms

    • 54
    • 79

    Mostly Sunny

    • 62
    • 82

    Mostly Cloudy

    • 60
    • 80

    Chance Rain Showers

    • 60
    • 77

    Chance Rain Showers

Today 27 Aug Merrimack

Partly sunny. Patchy fog in the morning. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Light and variable Winds, becoming south around 10 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 50 percent.

Tonight 27 Aug Merrimack

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Thunderstorms in the evening. A chance of Showers. Humid with Lows in the lower 60s. South Winds around 10 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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Contoocook Temperature Statistics

August Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 16 August, 2026

    48.7 °F

  • Average August

    73.4 °F

  • Highest 6 August, 2026

    93.7 °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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