Recent National Weather Service forecasts indicate a heat advisory for New York City on August 6 with highs near 90°F under mostly sunny skies before afternoon thunderstorms develop, creating tight uncertainty between the market's leading 88-89°F and 90-91°F outcomes. Model consensus shows modest variability in convective timing and cloud cover that can suppress peak readings by 1–2°F or allow brief spikes above 90°F, while the urban heat island effect at official stations like Central Park adds minor measurement variability. With probabilities nearly equal, traders are weighing the latest high-resolution runs against climatological August norms around 83°F and the potential for steering patterns to limit or enhance surface heating before resolution.