Weirs Beach Weather Forecast

    • 53
    • 77

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 53
    • 74

    Mostly Cloudy

    • 57
    • 79

    Partly Sunny

    • 42
    • 72

    Mostly Sunny

    • 42
    • 66

    Mostly Sunny

    • 49
    • 71

    Partly Sunny

Today 15 Sep Belknap

Mostly sunny. Highs in the mid 70s. Light and variable Winds.

Tonight 15 Sep Belknap

Mostly clear. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weirs Beach Temperature Statistics

September Temperature

Laconia, Laconia Municipal Airport (3.1 miles)

  • Lowest 10 September, 2025

    44.1 °F

  • Average September

    62.9 °F

  • Highest 3 September, 2025

    80.1 °F

Climate (2020–Present)

Laconia, Laconia Municipal Airport (3.1 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    57.3 °F
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