**Forecast models from the National Weather Service and private sources converge on a high in the mid-60s°F for New York City on October 4, 2026, with showers likely in the afternoon.** Easterly winds advect cooler, moister marine air onshore, while increasing cloud cover and precipitation limit daytime solar heating and keep the maximum temperature below the late-September warmth seen earlier in the week. This pattern aligns with the market’s heavy weighting toward 64–65 °F (47.5 %) and 66–67 °F (29.5 %), as traders price in the consensus of official guidance showing highs near 64–66 °F. Historical October 4 averages near 69–70 °F, but the current setup favors a cooler outcome. Updated model runs and afternoon observations will be the next key data points for any late shifts in implied probabilities.