Recent National Weather Service forecasts highlight partly sunny skies and light southwesterly flow supporting afternoon highs in the low to mid-80s across New York City on May 18, driving the market’s 32.5% implied probability on the 84–85°F bin. Subtle differences in cloud cover, boundary-layer moisture, and vertical mixing can easily shift the daily maximum by a degree or two, which explains the broad distribution with 21.5% on 82–83°F and 15.5% on 86–87°F. Official guidance from NOAA models shows limited consensus on peak intensity due to variable insolation and possible late-day sea-breeze influences, leaving roughly 20% probability on outcomes outside the 80–87°F range. Traders are monitoring the next model runs for any shift in these key variables before market resolution.