Highland Lake Weather Forecast

    • 63
    • 75

    Chance Rain Showers

    • 59
    • 81

    Chance Rain Showers

    • 59
    • 84

    Partly Sunny

    • 55
    • 81

    Slight Chance Rain Showers

    • 56
    • 81

    Partly Sunny

    • 56
    • 79

    Chance Rain Showers

Today 17 Aug Merrimack

Mostly cloudy. Showers likely with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Highs in the mid 70s. Light and variable Winds. Chance of rain 70 percent.

Tonight 17 Aug Merrimack

Mostly cloudy in the Evening, then becoming partly cloudy. A 20 percent chance of Showers. Patchy fog. Humid with Lows in the lower 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Highland Lake Temperature Statistics

August Temperature

Laconia, Laconia Municipal Airport (18.6 miles)

  • Lowest 15 August, 2026

    52 °F

  • Average August

    73 °F

  • Highest 7 August, 2026

    91 °F

Climate (2021–2026)

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

    57 °F
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