Laconia Weather Forecast

    • 44
    • 73

    Increasing Clouds

    • 46
    • 65

    Partly Sunny

    • 49
    • 60

    Rain Showers

    • 45
    • 65

    Mostly Cloudy

    • 45
    • 62

    Mostly Cloudy

    • 44
    • 61

    Partly Sunny

    • 47
    • 59

    Chance Rain Showers

Today 18 Sep Belknap

Mostly sunny. Highs in the lower 70s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 18 Sep Belknap

Partly cloudy. Lows in the mid 40s. Northwest Winds around 10 Mph with Gusts up to 25 Mph in the Evening, becoming light and variable.

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Laconia Temperature Statistics

September Temperature

Laconia, Laconia Municipal Airport (3.7 miles)

  • Lowest 15 September, 2026

    43 °F

  • Average September

    63.8 °F

  • Highest 10 September, 2026

    81 °F

Climate (2021–2026)

Laconia, Laconia Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57 °F
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