This line chart visualizes one week of hourly temperature measurements in San Francisco, with a smooth curve showing temperature fluctuations over time and labeled axes for "Time" and "Temperature." The visualization uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `axisBottom`, `axisLeft`, and `line` with `curveBasis` to generate the smooth path. Data is loaded asynchronously from a CSV file using `d3.csv`, parsed with timestamps converted to Date objects, and rendered as SVG elements with styled grid lines and a title. The chart includes custom tick styling and axis labels, with the temperature line drawn in maroon against a clean white background.