The National Weather Service's latest forecast for San Francisco International Airport (SFO)—the market's resolution point—projects a sunny day on April 3 with a high near 72°F under light winds shifting west in the afternoon, fueling trader consensus at 75% implied probability for 72°F or higher. This positioning stems from a rebuilding high-pressure ridge over California following yesterday's cold front, which delivered just 0.07 inches of rain and dropped temperatures to seasonal norms before clearing rapidly overnight. Current observations show overnight lows around 52–57°F, setting up efficient daytime heating above the April climatological average of 63°F, with model ensembles showing minimal marine layer intrusion. The 17% odds on 70–71°F reflect potential moderation from afternoon sea breezes, while real-time Automated Surface Observing System data at SFO will drive intraday shifts toward market close.