National Weather Service and model guidance from the GFS and ECMWF indicate mostly sunny conditions over San Francisco on August 2, with a weak pressure gradient and reduced marine-layer influence allowing daytime highs to reach the mid-70s. This setup stems from a broader inland heat wave that has produced lighter westerly flow along the coast, limiting the typical strong sea breeze and fog that cap temperatures near the long-term August average of 70°F. Current consensus places the highest probability on the 76–77°F bin, followed closely by 74–75°F and 78–79°F ranges, reflecting modest warming potential from diurnal heating under clear skies while still accounting for possible late-day cooling if onshore flow strengthens. Updated short-range forecasts and afternoon observations will refine these odds ahead of market resolution.