Lake Winnipesaukee Weather Forecast

    • 51
    • 62

    Rain

    • 51
    • 56

    Rain

    • 51
    • 56

    Rain

    • 53
    • 64

    Mostly Cloudy

    • 53
    • 69

    Mostly Cloudy

    • 55
    • 71

    Partly Sunny

Today 26 Sep Belknap

Partly sunny this Morning, then cloudy with rain likely this afternoon. Highs in the lower 60s. Northeast Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Tonight 26 Sep Belknap

Rain. Lows in the lower 50s. Northeast Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

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Lake Winnipesaukee Temperature Statistics

September Temperature

Laconia, Laconia Municipal Airport (5 miles)

  • Lowest 23 September, 2026

    39.9 °F

  • Average September

    61.3 °F

  • Highest 10 September, 2026

    81 °F

Climate (2021–2026)

Laconia, Laconia Municipal Airport (5 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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