Trader consensus on Polymarket heavily favors a highest temperature of 74-75°F in Atlanta today (71.5% implied probability), aligning closely with the National Weather Service forecast of a high near 74°F under partly sunny skies and northwest winds around 10 mph. This positioning stems from a cold front that swept through the Southeast in the past 24 hours, ushering in cooler Canadian air masses that have depressed temperatures below the April 30 climatological normal of 77°F, as confirmed by recent NOAA observational data showing morning readings in the low 60s amid lingering clouds and isolated showers. Forecast model ensembles, including short-range guidance from the High-Resolution Rapid Refresh (HRRR), show minimal divergence, with limited solar insolation potential capping upside risk; however, greater clearing could nudge toward 76-77°F (9.5%), while persistent cloud cover might yield 72-73°F (16.5%). Updated hourly observations and afternoon soundings from Hartsfield-Jackson Atlanta International Airport will refine resolution as the day progresses.