Alton Bay SPB Weather Forecast

    • 33
    • 41

    Chance Rain Showers

    • 29
    • 41

    Rain/Sleet

    • 20
    • 34

    Rain/Snow Likely

    • 24
    • 31

    Partly Sunny

    • 28
    • 38

    Mostly Cloudy

    • 23
    • 41

    Slight Chance Snow

    • 14
    • 34

    Slight Chance Snow

Today 9 Jan Belknap

Mostly cloudy with a 50 percent chance of rain. Highs in the upper 30s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 9 Jan Belknap

Cloudy with rain likely this Evening, then partly cloudy after midnight. Lows in the lower 30s. Southwest Winds 10 to 15 Mph, becoming west 15 to 20 Mph after midnight. Gusts up to 40 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alton Bay SPB Temperature Statistics

January Temperature

Laconia, Laconia Municipal Airport (10.6 miles)

  • Lowest 2 January, 2026

    0 °F

  • Average January

    18.7 °F

  • Highest 7 January, 2026

    35.1 °F

Climate (2021–Present)

Laconia, Laconia Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.1 °F
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