Penacook Lake Watershed Weather Forecast

    • 16
    • 39

    Decreasing Clouds

    • 17
    • 27

    Chance Snow

    • 23
    • 32

    Snow

    • 16
    • 34

    Mostly Cloudy

    • 24
    • 36

    Chance Snow Showers

    • 19
    • 38

    Chance Snow Showers

    • 20
    • 29

    Chance Snow Showers

Today 21 Dec Merrimack

Mostly sunny. Highs in the upper 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 21 Dec Merrimack

Partly cloudy. Lows around 15. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Penacook Lake Watershed Temperature Statistics

December Temperature

Concord Municipal Airport (4.3 miles)

  • Lowest 9 December, 2025

    -8 °F

  • Average December

    24.4 °F

  • Highest 19 December, 2025

    55.9 °F

Climate (2020–Present)

Concord Municipal Airport (4.3 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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