Recent forecasts from National Weather Service and private models indicate Seattle-Tacoma International Airport (KSEA) will reach a daily maximum near 84–86 °F on June 14 under building high pressure and reduced onshore flow, placing the 86–89 °F bins at the center of trader pricing. These values sit at or just above the 1988 record of 86 °F, with model consensus showing limited marine-layer recovery and afternoon temperatures peaking in the late afternoon. The modest probability mass on 90–91 °F reflects residual uncertainty in boundary-layer mixing and any last-minute warming from downslope winds, while sub-84 °F outcomes remain discounted given current 500-hPa ridging and observed early-June heat anomalies. Updated model runs and official observations through midday will determine whether the market tilts further toward the upper-80s or settles near the lower end of the favored range.