San Pablo Bay - Rat Rock Weather Forecast

    • 46
    • 58

    Increasing Clouds

    • 48
    • 59

    Mostly Cloudy

    • 49
    • 57

    Mostly Cloudy

    • 48
    • 58

    Partly Sunny

    • 47
    • 57

    Partly Sunny

    • 48
    • 57

    Partly Sunny

Today 19 Jan North Bay Interior Valleys

Partly cloudy. Areas of dense fog in the morning. Highs in the 50s to upper 60s. North Winds up to 5 Mph. Becoming south in the afternoon.

Tonight 19 Jan North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Areas of fog. Lows in the upper 30s to lower 50s. Northeast Winds up to 5 Mph.

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San Pablo Bay - Rat Rock Temperature Statistics

January Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 12 January, 2026

    33.8 °F

  • Average January

    50.7 °F

  • Highest 15 January, 2026

    66.2 °F

Climate (2021–Present)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    72.3 °F
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