Trader consensus clusters tightly around 60-63°F for San Francisco's highest temperature today, reflecting National Weather Service guidance forecasting a peak near 62°F amid mostly sunny conditions and partial burn-off of the persistent marine layer. Recent observations show past-week highs capped in the upper 50s by deepening coastal stratus from cool Pacific onshore flow, but lighter west winds around 10-15 knots today promote earlier clearing and enhanced diurnal heating inland. Differentiating factors include stratus depth—if the inversion layer remains shallow, fuller afternoon insolation supports 62-63°F; persistent advection fog favors 60-61°F. Monitor SFO hourly data through late afternoon for resolution-defining peaks, as model ensembles show minor spread in boundary layer mixing.