Allenstown Weather Forecast

    • 0
    • 36

    Snow Likely

    • 10
    • 23

    Partly Sunny

    • 18
    • 35

    Mostly Cloudy

    • 14
    • 34

    Chance Snow

    • 1
    • 23

    Mostly Sunny

    • 17
    • 26

    Chance Snow

    • 23
    • 35

    Mostly Cloudy

Today 4 Dec Merrimack

Snow likely. Little or no snow accumulation. Highs in the mid 30s. Temperatures falling into the lower 20s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of snow 60 percent.

Tonight 4 Dec Merrimack

Partly cloudy with a chance of snow this Evening, then mostly clear after midnight. Cooler with Lows around 1 below. Northwest Winds 15 to 20 Mph. Gusts up to 40 Mph, decreasing to 30 Mph after midnight. Chance of snow 50 percent. Wind chill Values as low as 14 below.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Allenstown Temperature Statistics

December Temperature

Concord Municipal Airport (5.6 miles)

  • Lowest 1 December, 2025

    16 °F

  • Average December

    27.7 °F

  • Highest 1 December, 2025

    37 °F

Climate (2020–Present)

Concord Municipal Airport (5.6 miles)

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

  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
Get WillyWeather+ to remove ads