Highland Lake Weather Forecast

    • 38
    • 63

    Decreasing Clouds

    • 42
    • 68

    Partly Sunny

    • 41
    • 65

    Rain Showers Likely

    • 42
    • 53

    Rain Showers Likely

    • 47
    • 65

    Chance Rain Showers

    • 51
    • 76

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

Today 21 May Merrimack

Partly sunny. Cooler with Highs in the mid 60s. Northwest Winds around 10 Mph.

Tonight 21 May Merrimack

Partly cloudy. Lows in the upper 30s. Light and variable Winds.

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  • Temperature Real-Time

Highland Lake Temperature Statistics

May Temperature

Laconia, Laconia Municipal Airport (18.6 miles)

  • Lowest 8 May, 2026

    32 °F

  • Average May

    54 °F

  • Highest 19 May, 2026

    89.1 °F

Climate (2021–Present)

Laconia, Laconia Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    56.9 °F
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