Highland Lake Weather Forecast

    • 46
    • 85

    Slight Chance Thunderstorms

    • 37
    • 63

    Partly Sunny

    • 45
    • 68

    Partly Sunny

    • 42
    • 64

    Chance Rain Showers

    • 42
    • 56

    Chance Rain Showers

    • 48
    • 68

    Chance Rain Showers

    • 51
    • 75

    Slight Chance Rain Showers

Today 20 May Merrimack

Partly sunny with isolated Showers. Warm with Highs in the mid 80s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 20 May Merrimack

Partly cloudy with isolated Showers in the Evening, then mostly cloudy after midnight. Lows in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Highland Lake Temperature Statistics

May Temperature

Laconia, Laconia Municipal Airport (18.6 miles)

  • Lowest 8 May, 2026

    32 °F

  • Average May

    52.9 °F

  • Highest 5 May, 2026

    82 °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 °F

  • Average High 2021–2026

    56.9 °F
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