National Weather Service forecasts and ensemble model consensus position overnight lows in the mid-to-upper 60s as the most likely outcome for Los Angeles on October 9, aligning with the market's leading 68-69°F bin. Persistent onshore southwest flow and a developing marine layer—common in coastal Southern California during early fall—will moderate temperatures following the recent heatwave, limiting radiational cooling overnight while daytime highs drop into the upper 70s to low 80s. Historical October lows near 60°F provide context for the lower-probability bins, though current conditions favor milder readings. Traders will monitor the next NWS update and any shifts in the marine layer or wind patterns for resolution criteria tied to the daily minimum at official stations.