San Francisco Bay - Sierra Point Marina Weather Forecast

    • 55
    • 67

    Rain Showers Likely

    • 55
    • 68

    Rain Showers Likely

    • 53
    • 65

    Chance Rain Showers

    • 51
    • 69

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 53
    • 72

    Partly Sunny

Today 20 Oct San Francisco Bay Shoreline

Mostly cloudy. Highs in the upper 60s. Southeast Winds up to 5 Mph. Becoming northwest in the afternoon.

Tonight 20 Oct San Francisco Bay Shoreline

Mostly cloudy. A chance of Showers after midnight. Lows in the mid 50s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Francisco Bay - Sierra Point Marina Temperature Statistics

October Temperature

San Francisco, San Francisco International Airport (3.7 miles)

  • Lowest 12 October, 2026

    50.6 °F

  • Average October

    66.3 °F

  • Highest 3 October, 2026

    90.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (3.7 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    66.9 °F
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