Penacook Weather Forecast

    • 25
    • 34

    Increasing Clouds

    • 15
    • 40

    Partly Sunny

    • 17
    • 28

    Partly Sunny

    • 23
    • 35

    Snow Likely

    • 17
    • 33

    Mostly Cloudy

    • 27
    • 39

    Chance Snow

Today 20 Dec Merrimack

Partly sunny. Highs in the lower 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming southwest in the afternoon.

Tonight 20 Dec Merrimack

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

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Penacook Temperature Statistics

December Temperature

Concord Municipal Airport (6.8 miles)

  • Lowest 9 December, 2025

    -8 °F

  • Average December

    22.8 °F

  • Highest 17 December, 2025

    42.1 °F

Climate (2020–Present)

Concord Municipal Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
Get WillyWeather+ to remove ads