San Francisco Bay - Richmond San Rafael Bridge Weather Forecast

    • 65
    • 83

    Increasing Clouds

    • 61
    • 72

    Partly Sunny

    • 58
    • 67

    Mostly Sunny

    • 56
    • 70

    Windy

    • 56
    • 72

    Mostly Sunny

    • 56
    • 71

    Mostly Sunny

Today 9 Sep North Bay Interior Valleys

Partly cloudy. Highs upper 80s to 103. North Winds up to 5 Mph increasing to west 10 to 15 Mph in the afternoon.

Tonight 9 Sep North Bay Interior Valleys

Partly cloudy. Lows in the 60s to lower 70s. West Winds 5 to 10 Mph.

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San Francisco Bay - Richmond San Rafael Bridge Temperature Statistics

September Temperature

Novato / Gnoss Field (14.9 miles)

  • Lowest 6 September, 2026

    48.2 °F

  • Average September

    64 °F

  • Highest 5 September, 2026

    80.6 °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

    72.4 °F
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