Recent forecasts from the National Weather Service and other models indicate a sharp cooldown for Seattle on June 16 following a mid-June heat wave, with highs near 72°F driven by shifting onshore flow and reduced subsidence. This positions the 72–73°F and 74–75°F bins as the most probable outcomes, aligning with the closely matched market-implied odds near 28% for 74–75°F and 27.5% for 76–77°F. Historical climatology shows typical mid-June highs around 70–74°F, but persistent above-normal temperatures this season and model spread on exact timing of the marine layer intrusion create the narrow gap between the top two bins. Traders appear to weigh ensemble guidance favoring modest recovery above 72°F against the risk of further cooling if clouds or stronger westerlies develop overnight. Updated NWS and NOAA model runs expected in the next 12–24 hours will likely refine these probabilities ahead of resolution.