Recent clearing after coastal showers has set up high pressure and mostly clear skies over Los Angeles for October 13, favoring radiational cooling overnight. Official NWS and ensemble guidance from multiple models consistently project an overnight low in the mid-50s °F (roughly 53–58 °F), moderated by light northeast drainage winds and residual marine influence. Historical October climatology places typical minima near 58 °F, so the current pattern represents a modest cool anomaly. Model spread remains narrow this close to the event, yet traders assign equal 50 % implied probability to the 47 °F-or-below and 66 °F-or-higher extremes—likely reflecting uncertainty over microclimate differences between reporting stations (e.g., downtown versus LAX) and the precise timing of any residual cloud cover that could limit cooling. Upcoming 00Z–12Z model runs and NWS forecast updates will provide the next clear signals for resolution.