Persistent high pressure and offshore flow are sustaining an October heat wave across Southern California, with National Weather Service forecasts for downtown Los Angeles on October 7 showing highs of 91–100°F under sunny skies and light winds. Model guidance indicates modest cooling from prior days’ 100°F+ peaks as the ridge begins to weaken slightly, though exact afternoon maxima hinge on the strength of any sea breeze and precise steering patterns. This uncertainty explains the tight clustering of market-implied probabilities around 88–93°F, with traders balancing historical October records near 96°F against the current forecast consensus and upcoming NWS updates.