San Francisco Bay - East Brother Lighthouse Weather Forecast

    • 58
    • 64

    Increasing Clouds

    • 58
    • 61

    Chance Drizzle

    • 56
    • 61

    Chance Rain

    • 54
    • 62

    Mostly Sunny

    • 55
    • 63

    Mostly Sunny

    • 58
    • 65

    Mostly Sunny

Today 1 Sep San Francisco Bay Shoreline

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the mid 60s to lower 70s. West Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 1 Sep San Francisco Bay Shoreline

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. West Winds 10 to 20 Mph. Becoming south 5 to 10 Mph after midnight.

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San Francisco Bay - East Brother Lighthouse Temperature Statistics

September Temperature

Novato / Gnoss Field (13.7 miles)

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  • Average September

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Climate (2021–2026)

Novato / Gnoss Field (13.7 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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