Residents in Montana, the Dakotas, and Minnesota are expected to face unhealthy air quality through at least Tuesday, July 28, 2026. Sensitive groups, including children, the elderly, and individuals with respiratory or cardiovascular conditions, are at higher risk of health complications. The smoke contains fine particulate matter that can penetrate deep into the lungs, potentially causing serious health issues. While some smoke may reach Florida, it is not expected to pose significant health risks there.