Penacook Lake Watershed Weather Forecast

    • 12
    • 34

    Mostly Sunny

    • 13
    • 28

    Mostly Sunny

    • 18
    • 32

    Snow Showers

    • 10
    • 27

    Partly Sunny

    • 13
    • 20

    Snow Showers

    • 14
    • 29

    Mostly Cloudy

    • 24
    • 36

    Mostly Cloudy

Today 11 Dec Merrimack

Partly sunny. Scattered Flurries. Highs in the lower 30s. Temperatures falling into the lower 20s. West Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 11 Dec Merrimack

Partly cloudy with scattered Flurries this afternoon and Evening, then mostly clear after midnight. Lows around 10 above. West Winds 15 to 20 Mph with Gusts up to 40 Mph. Wind chill Values as low as 8 below after midnight.

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Penacook Lake Watershed Temperature Statistics

December Temperature

Concord Municipal Airport (4.3 miles)

  • Lowest 9 December, 2025

    -8 °F

  • Average December

    21.1 °F

  • Highest 1 December, 2025

    37 °F

Climate (2020–Present)

Concord Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
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