Arizona Monsoon Forecast: What to Expect on Wednesday, July 15, 2026

Here is your Monsoon Outlook for Wednesday, July 15, 2026, provided by the US National Weather Service Flagstaff, Arizona . Graphic from U.S. National Weather Service Flagstaff, Arizona. According to the US National Weather Service, Flagstaff, Arizona , Monsoon moisture will remain over the region with daytime temperatures falling below normal. Some storms over the next few days will be capable of producing heavy rainfall and a threat of flash flooding. A Flash Flood Watch has been issued for Ya