Henniker Weather Forecast

    • 50
    • 70

    Increasing Clouds

    • 44
    • 63

    Rain

    • 44
    • 62

    Rain Showers Likely

    • 39
    • 61

    Rain Showers Likely

    • 36
    • 56

    Slight Chance Rain Showers

    • 34
    • 55

    Partly Sunny

Today 19 Oct Merrimack

Patchy fog this morning. Partly sunny. Highs in the upper 60s. Light and variable Winds, becoming southeast around 10 Mph with Gusts up to 20 Mph this afternoon.

Tonight 19 Oct Merrimack

Partly cloudy in the Evening, then cloudy with a chance of Showers after midnight. Patchy fog after midnight. Lows in the upper 40s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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Henniker Temperature Statistics

October Temperature

Concord Municipal Airport (16.2 miles)

  • Lowest 10 October, 2025

    26.1 °F

  • Average October

    54.1 °F

  • Highest 6 October, 2025

    86 °F

Climate (2020–Present)

Concord Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    38.7 °F

  • Average 2020–2025

    49.4 °F

  • Average High 2020–2025

    60.2 °F
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