Recent forecasts from the National Weather Service and AccuWeather indicate New York City overnight lows for August 21 will likely fall in the mid-to-upper 60s°F, aligning with the market's strongest implied probabilities around 66–69°F. This positioning reflects a modest cooling trend relative to mid-August averages near 67–70°F, driven by northerly flow and clearer skies that enhance radiational cooling under lighter winds. Model consensus points to a minimum near 66–68°F, with limited spread across guidance due to stable high-pressure influence and no significant warm advection expected overnight. Historical August Central Park data shows comparable late-month lows occur frequently when dew points drop below 60°F, supporting trader focus on these bins over warmer or much cooler outcomes. Updated model runs through August 19–20 have reinforced this range without major shifts, keeping resolution criteria centered on the official Central Park thermometer reading.