San Pablo Bay - Rat Rock Weather Forecast

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    • 61

    Chance Rain

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    • 63

    Mostly Sunny

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    • 64

    Mostly Cloudy

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    • 64

    Chance Rain

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    Chance Rain

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    Slight Chance Rain

Today 31 Oct North Bay Interior Valleys

Mostly cloudy. Areas of fog in the morning. A chance of Sprinkles in the afternoon. Highs in the 50s to mid 60s. West Winds 5 to 10 Mph.

Tonight 31 Oct North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. A slight chance of Showers in the evening. A chance of Showers after midnight. Patchy fog after midnight. Lows in the upper 30s to lower 50s. West Winds 5 to 10 Mph.

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San Pablo Bay - Rat Rock Temperature Statistics

October Temperature

Novato / Gnoss Field (10.6 miles)

  • Lowest 13 October, 2026

    42.8 °F

  • Average October

    61.7 °F

  • Highest 3 October, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (10.6 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    72.6 °F
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