Latest National Weather Service and ensemble model guidance for October 4 point to a post-frontal air mass and persistent easterly flow advecting cooler marine air into the NYC metro, keeping daytime highs in the mid-60s. Cloud cover and a 40% chance of afternoon showers further limit solar heating, while dew points in the upper 50s support modest temperatures near or slightly below the early-October climatological average of 69–70°F. Traders assign the highest implied probability to 66–67°F because most deterministic runs cluster there, with 64–65°F as the main alternative if thicker clouds or heavier rain develop. Updated NWS short-range forecasts and next model cycles will be the key near-term catalysts.