Recent National Weather Service and model guidance for August 17 point to a typical mid-August setup near Central Park’s 83°F seasonal average, with light winds, limited moisture, and variable afternoon cloud cover creating a broad plausible range rather than a sharp peak. This uncertainty—amplified by slight disagreements among short-range models on boundary-layer mixing and any weak frontal passage—explains the market’s near-even distribution across 78–94°F bins, as traders weigh the potential for modest warming under clearer skies against modest suppression from increased humidity or scattered clouds. No major heat-advection event or blocking pattern has emerged in the past 48 hours to tilt probabilities toward the upper tail, keeping outcomes clustered around climatological norms.