A smooth, stylized line chart displays weekly temperature variations over time, using a natural curve to connect data points from the San Francisco temperature dataset loaded via d3.csv. The React-based visualization renders SVG elements with d3 scales (scaleTime, scaleLinear) and axes built from custom React components. The line path is generated using d3.line with curveNatural, styled in teal, while gridlines use d3.ticks for axis labels.