Alton Bay SPB Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 56
    • 80

    Rain Showers

    • 40
    • 64

    Chance Rain Showers

    • 35
    • 56

    Mostly Sunny

    • 42
    • 62

    Mostly Sunny

    • 43
    • 66

    Partly Sunny

Today 5 Oct Belknap

Sunny. Highs in the lower 80s. Light and variable Winds.

Tonight 5 Oct Belknap

Clear. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Bay SPB Temperature Statistics

October Temperature

Laconia, Laconia Municipal Airport (10.6 miles)

  • Lowest 1 October, 2025

    41 °F
  • Average October

    54.2 °F
  • Highest 3 October, 2025

    73.9 °F

Climate (2020–Present)

Laconia, Laconia Municipal Airport (10.6 miles)

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  • Average Low 2020–2025

    39.4 °F
  • Average 2020–2025

    48.4 °F
  • Average High 2020–2025

    57.4 °F
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