Current National Weather Service and model guidance point to a San Francisco high near 70–72°F on August 5, with the marine layer and persistent onshore flow from the Pacific providing typical coastal cooling. Trader consensus clusters in the 72–75°F bins because recent model runs show modest high-pressure influence that could briefly weaken the sea breeze and allow slightly warmer afternoon readings without fully eroding the usual fog and upwelling effects. Historical August averages hover around 70°F, so probabilities reflect minor deviations from climatology rather than any major heat event, with resolution hinging on the precise strength and timing of the gradient between interior warmth and the marine intrusion.