Trader consensus on Polymarket has locked in 70-71°F as the highest temperature recorded at New York City's Central Park station (KNYC) on May 4, 2026, with 100% implied probability reflecting the official National Weather Service observations confirming this measurement amid mostly sunny skies and light winds under a persistent high-pressure ridge. NOAA forecast models, including the latest GFS and NAM runs released 24-48 hours prior, consistently projected daytime highs in the 68-72°F range, aligning with climatological May norms (average high ~70°F) and cool mid-level air masses suppressing warmer advection. This positioning is bolstered by hourly METAR reports peaking near 71°F in early afternoon. Realistic challenges would require rare post hoc data revisions from NOAA's quality control—such as sensor recalibrations—or disputes over the official resolution source, though historical precedents show such adjustments affect less than 1% of daily records. No further updates expected as final climate summary publishes soon.