Offshore flow from a building Pacific ridge and suppressed marine layer are driving the current trader consensus around an 80–83°F high for San Francisco on October 15. Northeast winds of 5–10 mph are expected to mix warmer, drier air inland while clear skies allow strong daytime heating, pushing temperatures well above the 70.6°F climatological average. Model guidance shows minor spread tied to exact wind timing and any residual coastal stratus, with NWS forecasts centering near 80–82°F. Resolution hinges on the official daily maximum at downtown or airport stations, and any late-day marine push could cap readings in the upper 70s.