This scatter plot visualizes a week of temperature data in San Francisco, displaying temperature in degrees Celsius over time. The code imports functions from D3.js, including `select`, `csv`, `extent`, `scaleTime`, `scaleLinear`, `axisLeft`, and `axisBottom`, to render an SVG chart. Data is loaded from a CSV URL and parsed, with the plot featuring labeled axes, grid lines, and steelblue circles. The chart includes axis labels and a title, with styling applied via external CSS.