Scattered showers and storms will develop over the higher elevations early in the day, then push into the lower deserts this afternoon and evening.
The best chance for showers and storms in eastern Pima county, including Tucson, will happen between 3 PM and 8 PM. Some storms will produce heavy rain and strong winds. Areas of blowing dust are possible with any developing storms, especially on I-10 between Tucson and Phoenix.
A 20 to 40% chance for daily storms will continue through the first half of the week. Dryer and warmer for the weekend.