San Quentin Weather Forecast

    • 47
    • 66

    Sunny

    • 46
    • 65

    Mostly Sunny

    • 47
    • 64

    Mostly Sunny

    • 48
    • 66

    Partly Sunny

    • 48
    • 65

    Mostly Cloudy

    • 47
    • 66

    Mostly Sunny

Today 3 Dec North Bay Interior Valleys

Sunny. Highs in the 60s to lower 70s. North Winds up to 5 Mph. Becoming south in the afternoon.

Tonight 3 Dec North Bay Interior Valleys

Mostly clear. Areas of fog after midnight. Lows in the upper 30s to lower 50s. Light Winds.

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San Quentin Temperature Statistics

December Temperature

Novato / Gnoss Field (14.3 miles)

  • Lowest 1 December, 2024

    46.4 °F

  • Average December

    53.2 °F

  • Highest 1 December, 2024

    64.4 °F

Climate (2019–Present)

Novato / Gnoss Field (14.3 miles)

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  • Average Low 2019–2024

    45.8 °F

  • Average 2019–2024

    57.6 °F

  • Average High 2019–2024

    72.6 °F
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