This line chart visualizes temperature readings from a week in San Francisco, using a smooth natural curve to connect daily data points. Built with React and D3 v7, the visualization renders as SVG and includes circular markers with tooltips for individual values. The time-based x-axis uses `d3.scaleTime` with daily ticks, while the y-axis maps temperature using `d3.scaleLinear`. Styling emphasizes the teal line and circles against muted axis ticks, with labeled axes for Time and Temperature.