Granite Bay Weather Forecast

    • 42
    • 52

    Mostly Cloudy

    • 45
    • 55

    Mostly Cloudy

    • 45
    • 59

    Partly Sunny

    • 45
    • 60

    Partly Sunny

    • 45
    • 61

    Mostly Sunny

    • 45
    • 61

    Partly Sunny

Today 8 Dec Southern Sacramento Valley

Widespread fog. Locally dense in the Morning, then patchy fog early in the afternoon. Mostly cloudy. Highs 49 to 56. Light Winds.

Tonight 8 Dec Southern Sacramento Valley

Mostly cloudy. Lows around 41. Light Winds.

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Granite Bay Temperature Statistics

December Temperature

Auburn Municipal Airport (13.7 miles)

  • Lowest 4 December, 2025

    32 °F

  • Average December

    42.6 °F

  • Highest 3 December, 2025

    60.8 °F

Climate (2020–Present)

Auburn Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    71.7 °F
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