Alton Bay Weather Forecast

    • 21
    • 40

    Increasing Clouds

    • 27
    • 42

    Decreasing Clouds

    • 34
    • 44

    Chance Rain Showers

    • 24
    • 41

    Partly Sunny

    • 30
    • 41

    Partly Sunny

    • 31
    • 46

    Partly Sunny

    • 33
    • 45

    Chance Rain Showers

Today 19 Nov Belknap

Sunny. Highs around 40. Light and variable Winds.

Tonight 19 Nov Belknap

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 20s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Bay Temperature Statistics

November Temperature

Laconia, Laconia Municipal Airport (11.2 miles)

  • Lowest 7 November, 2025

    26.1 °F

  • Average November

    39.3 °F

  • Highest 8 November, 2025

    57 °F

Climate (2020–Present)

Laconia, Laconia Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    57.3 °F
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