This line chart displays a week of temperature readings in San Francisco, plotting temperature against time with a smooth green curve and red data points. The visualization uses D3 v5’s `scaleTime` and `scaleLinear` for axes, `line` with `curveBasis` for the smoothed path, and `axisBottom`/`axisLeft` for grid-lined ticks. Data is loaded from a CSV hosted on VizHub, with timestamps parsed as dates and temperatures as numbers. SVG rendering is used, with custom styling for axis labels, title, and grid lines.