Recent forecasts from the National Weather Service and other models point to mostly sunny conditions with light onshore flow, supporting highs in the mid-70s for San Francisco on August 3. Persistent high pressure and reduced marine layer influence have allowed clearer skies and gradual warming over the past several days, elevating trader odds for 74–77°F ranges. Key differentiators include the strength of the inversion layer and exact timing of any afternoon sea breeze, which can cap temperatures below 72°F or permit brief peaks near 80°F depending on model runs. Historical August averages near 70°F provide context, but recent observational trends favor the current market-implied consensus. Updated NWS guidance and ensemble model outputs expected overnight will likely refine these probabilities.