Henniker Weather Forecast

    • 9
    • 22

    Increasing Clouds

    • 20
    • 34

    Mostly Cloudy

    • 12
    • 31

    Mostly Cloudy

    • 0
    • 20

    Mostly Sunny

    • 17
    • 26

    Mostly Cloudy

    • 28
    • 37

    Chance Snow

Today 5 Dec Merrimack

Mostly sunny. Highs in the lower 20s. Light and variable Winds.

Tonight 5 Dec Merrimack

Partly cloudy. Lows around 9 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Henniker Temperature Statistics

December Temperature

Concord Municipal Airport (16.2 miles)

  • Lowest 1 December, 2025

    16 °F

  • Average December

    27.9 °F

  • Highest 1 December, 2025

    37 °F

Climate (2020–Present)

Concord Municipal Airport (16.2 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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