This interactive visualization displays temperature readings over the course of a week in San Francisco, plotted as a smooth line chart using React and SVG. The chart filters the data to only show circular markers for temperatures at or above 25 degrees, with tooltips revealing the day of week for each point. Built with D3 v5, it uses <code>scaleTime</code> and <code>scaleLinear</code> for axes, <code>curveNatural</code> for the line path, and <code>csv</code> to load the dataset from a GitHub gist.