Arizona's Monsoon: Your Wednesday, July 22, 2026, Weather Forecast.

Here is your Monsoon Outlook for Wednesday, July 22, 2026, provided by the US National Weather Service Flagstaff, Arizona . Graphic from U.S. National Weather Service Flagstaff, Arizona. Monsoon According to the US National Weather Service, Flagstaff, Arizona , another round of showers and thunderstorms is expected this afternoon and evening, with the best coverage over the higher terrain areas. Storm motion will be slow today, leading to a threat of flash flooding. Many areas already have satur