**Recent National Weather Service forecasts for New York City indicate an overnight low near 74°F on August 1–2, 2026, under mostly cloudy skies and a warm southerly flow.** This places the expected minimum squarely in the 72–77°F range that dominates current market-implied probabilities (74–75°F at 40%, 76–77°F at 28%, 72–73°F at 27.5%). Key scientific factors include the ongoing warm air mass, elevated dew points limiting nocturnal radiative cooling, and the urban heat island effect, which routinely adds several degrees to minimum temperatures in Manhattan and surrounding boroughs compared with rural sites. The National Weather Service Climate Prediction Center’s August outlook, issued in July, assigns a 40–50% chance of above-average temperatures across the region, consistent with these elevated nighttime readings relative to the 1991–2020 Central Park average low of 68°F. Model consensus from the NWS and supporting guidance shows little day-to-day variability in the short-range forecast, with only modest spread between runs; any late adjustments would likely come from updated boundary-layer or cloud-cover predictions issued in the next 12–24 hours. Traders are therefore weighting the most probable outcomes around the current NWS point forecast while assigning lower probability to cooler or warmer extremes that would require an unexpected frontal passage or clearer skies.