Air Quality Alert

Full Alert Message

Air Quality Alert Relayed by National Weather Service Great Falls MT 848 AM MDT Thu Sep 4 2025 ...AIR QUALITY ALERT IN EFFECT... The Montana Department of Environmental Quality has issued an air quality alert for Beaverhead, Deer Lodge, Granite, Mineral, Missoula, Powell, Ravalli, Sanders counties in effect until 9AM on 09/05/2025 An Air Quality Alert means that particulates have been trending upwards and that an exceedence of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 7AM on 09/04/2025, particulate levels in Lewistown are Unhealthy for Sensitive Groups. As of 7AM on 09/04/2025, particulate levels in Billings, Butte, Columbia Falls, Cut Bank, Dillon, Frenchtown, Glendive, Great Falls, Hamilton, Havre, Helena, Miles City, Missoula, Seeley Lake, Sidney, Sleeping Giant and Thompson Falls are Moderate. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us