San Francisco Bay - East Brother Lighthouse Weather Forecast

    • 57
    • 72

    Mostly Sunny

    • 54
    • 64

    Mostly Sunny

    • 55
    • 60

    Mostly Cloudy

    • 56
    • 61

    Chance Rain Showers

    • 56
    • 63

    Partly Sunny

    • 54
    • 61

    Partly Sunny

Today 17 Oct San Francisco Bay Shoreline

Sunny. Highs in the 80s. North Winds up to 5 Mph. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 17 Oct San Francisco Bay Shoreline

Mostly clear. Lows in the mid 50s. West Winds 5 to 15 Mph.

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San Francisco Bay - East Brother Lighthouse Temperature Statistics

October Temperature

Novato / Gnoss Field (13.7 miles)

  • Lowest 13 October, 2026

    42.8 °F

  • Average October

    63.8 °F

  • Highest 3 October, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (13.7 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    57.9 °F

  • Average High 2021–2026

    72.5 °F
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