National Weather Service forecasts and supporting model runs from NOAA indicate the overnight low in Los Angeles on October 13 will reach 56–57°F under clear skies, light winds, and strong radiational cooling typical of autumn high-pressure regimes. Multiple point forecasts for downtown and LAX sites converge on this range, consistent with climatological norms for mid-October when daytime highs near 70–74°F give way to efficient nighttime heat loss. Trader consensus at 95% implied probability for 56–57°F reflects this tight agreement in official guidance. A realistic shift could occur if unexpected marine layer clouds or increased wind speeds limit cooling, pushing the observed minimum into the mid-50s or low 58s at official reporting stations.