Official National Weather Service observations at Houston's William P. Hobby Airport (KHOU)—the designated resolution station—confirm the highest temperature reached 85°F at 3:04 PM CDT on April 16, 2026, locking in 100% market-implied probability for the 84-85°F outcome as traders aggregated real-time data from Wunderground. This matched pre-event NOAA forecast model consensus for low-to-mid 80s highs under a high-pressure ridge, partly cloudy skies, southerly winds of 3-20 mph promoting warm air advection, and dew points in the 60s°F enabling efficient daytime heating without excessive humidity. Slightly above the April climatological average of 79°F, the reading reflects typical spring warming patterns. Realistic challenges would require rare quality-controlled data revisions by NWS, such as sensor recalibrations, though preliminary reports seldom change for non-extreme events; next daily climate summaries expected soon.