**Recent NWS and model guidance for Atlanta on August 11 points to a mostly sunny to partly cloudy day with a high near 91–92°F at the official airport station (KATL), amid rising temperatures, elevated moisture, and a 20–30% chance of afternoon showers or thunderstorms.** These conditions explain why the market prices 90–91°F and 92–93°F as the clear leaders at 38% and 34.5% implied probability. Afternoon convection and any earlier cloud cover can cap the peak by 1–3°F, while strong insolation under limited cloud cover supports the upper end of that range. Longer-range outlooks for the first half of August show typical late-summer warmth (climatological normals near 88–90°F) with scattered storms, but the latest short-term runs favor the higher side of normal. Traders are therefore weighing the narrow spread between these two bins, with small adjustments likely as the final 12–18-hour forecast updates arrive before resolution.