This line chart visualizes a week of temperature readings in San Francisco, highlighting temperature variation over time with an area fill beneath the curve. The visualization uses D3 v5 APIs including `scaleTime`, `scaleLinear`, `area`, `axisBottom`, and `axisLeft` to render SVG elements. Data is loaded via `csv` from a remote dataset, with timestamps parsed as dates and temperatures as numbers. The chart features a maroon area path generated with `curveBasis`, along with labeled axes and a title.