This chart displays a week of temperature readings in San Francisco, with time on the x-axis and degrees Celsius on the y-axis. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` with `curveBasis` to plot a smooth line on an SVG canvas. Grid lines and labeled axes are styled via CSS, and the data is loaded from a CSV file hosted on GitHub.