This line chart visualizes a week of temperature data in San Francisco, with timestamps on the x-axis and temperature on the y-axis. The chart uses D3 v5 to scale data with `scaleTime` and `scaleLinear`, draw axes via `axisBottom` and `axisLeft`, and render a smooth curve using the `line` generator with `curveBasis`. Data is loaded as CSV and parsed into dates and numbers. The SVG rendering includes grid lines, axis labels, and a title, with styling applied via CSS classes.