Highland Lake Weather Forecast

    • 51
    • 56

    Rain

    • 50
    • 67

    Mostly Cloudy

    • 50
    • 72

    Mostly Cloudy

    • 58
    • 77

    Partly Sunny

    • 46
    • 74

    Partly Sunny

    • 41
    • 64

    Partly Sunny

Today 28 Sep Merrimack

Partly sunny. A chance of Showers in the morning. Highs in the lower 60s. Chance of rain 30 percent.

Tonight 28 Sep Merrimack

Rain. Areas of fog. Lows in the lower 50s. Northeast Winds around 10 Mph this Evening, becoming light and variable. Chance of rain near 100 percent.

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  • Temperature Real-Time

Highland Lake Temperature Statistics

September Temperature

Laconia, Laconia Municipal Airport (18.6 miles)

  • Lowest 23 September, 2026

    39.9 °F

  • Average September

    61.2 °F

  • Highest 10 September, 2026

    81 °F

Climate (2021–2026)

Laconia, Laconia Municipal Airport (18.6 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    56.9 °F
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