San Francisco Bay - Richmond San Rafael Bridge Weather Forecast

    • 56
    • 65

    Mostly Sunny

    • 60
    • 71

    Mostly Sunny

    • 60
    • 73

    Partly Sunny

    • 64
    • 80

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 59
    • 71

    Partly Sunny

Today 6 Sep North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 60s to lower 80s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 6 Sep North Bay Interior Valleys

Mostly clear except patchy fog after midnight. Lows in the upper 40s to mid 50s. West Winds 10 to 20 Mph becoming northwest 5 to 10 Mph after midnight.

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San Francisco Bay - Richmond San Rafael Bridge Temperature Statistics

September Temperature

Novato / Gnoss Field (14.9 miles)

  • Lowest 2 September, 2026

    57.2 °F

  • Average September

    64.7 °F

  • Highest 2 September, 2026

    77 °F

Climate (2021–2026)

Novato / Gnoss Field (14.9 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    72.5 °F
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