Highland Lake Weather Forecast

    • 9
    • 16

    Decreasing Clouds

    • 12
    • 26

    Chance Snow

    • 2
    • 20

    Slight Chance Snow

    • 8
    • 21

    Partly Sunny

    • 1
    • 21

    Partly Sunny

    • 4
    • 19

    Partly Sunny

Today 30 Dec Merrimack

Partly sunny. Highs around 18. West Winds 15 to 20 Mph with Gusts up to 40 Mph. Wind chill Values as low as 5 below.

Tonight 30 Dec Merrimack

Partly cloudy. Lows around 11. West Winds 10 to 15 Mph. Gusts up to 35 Mph in the evening. Wind chill Values as low as 3 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Highland Lake Temperature Statistics

December Temperature

Laconia, Laconia Municipal Airport (18.6 miles)

  • Lowest 9 December, 2025

    -2.9 °F

  • Average December

    23.3 °F

  • Highest 19 December, 2025

    57 °F

Climate (2020–Present)

Laconia, Laconia Municipal Airport (18.6 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    48.3 °F

  • Average High 2020–2025

    57.2 °F
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