Squam Lake Weather Forecast

    • 13
    • 23

    Increasing Clouds

    • 22
    • 30

    Mostly Cloudy

    • 15
    • 30

    Mostly Cloudy

    • 3
    • 20

    Mostly Sunny

    • 19
    • 24

    Mostly Cloudy

    • 31
    • 35

    Chance Snow

Today 5 Dec Belknap

Mostly sunny. Highs in the lower 20s. Light and variable Winds.

Tonight 5 Dec Belknap

Partly cloudy. Lows around 10 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Squam Lake Temperature Statistics

December Temperature

Plymouth Municipal Airport (11.2 miles)

  • Lowest 1 December, 2025

    13.6 °F

  • Average December

    26.2 °F

  • Highest 1 December, 2025

    36.5 °F

Climate (2020–Present)

Plymouth Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.2 °F
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