Persistent high pressure and clear skies across Southern California are sustaining elevated overnight temperatures, with National Weather Service forecasts projecting a low in the upper 70s°F for Los Angeles on October 5 amid a regional heat wave featuring daytime highs near 100°F. Minimal radiative cooling under dry conditions, combined with light winds, limits the typical nocturnal drop, keeping the minimum well above seasonal norms near 65°F while making sub-70°F readings unlikely absent a rapid marine layer intrusion. Trader positioning reflects this model consensus alongside tail risks from forecast revisions or station-specific measurements, as the market aggregates real-capital assessments of variables like dew points and wind patterns that differentiate a 77–79°F outcome from extremes.