San Francisco Bay - Sierra Point Marina Weather Forecast

    • 56
    • 70

    Chance Rain Showers

    • 54
    • 66

    Chance Rain Showers

    • 52
    • 70

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

    • 53
    • 75

    Partly Sunny

Today 21 Oct San Francisco Bay Shoreline

Mostly cloudy. A chance of Showers. Highs near 70. Southeast Winds up to 5 Mph. Becoming northeast in the afternoon.

Tonight 21 Oct San Francisco Bay Shoreline

Mostly cloudy. A chance of Showers. Patchy fog after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph becoming south after midnight.

Graph Plots Open in Graphs

  • 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

    66.2 °F

  • Highest 3 October, 2026

    90.6 °F

Climate (2021–2026)

San Francisco, San Francisco International Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    66.9 °F
Get WillyWeather+ to remove ads