How high do weather balloons go in feet?

While no one can ever guarantee a weather balloon will soar to a specific height, the balloons typically reach between 60,000 and 105,000 feet.

What is the highest altitude a weather balloon can go?

Weather balloons are a type of high altitude balloon specifically used for transporting scientific payloads into our upper atmosphere. They can carry their payloads as high as 40,000 m ~ 130,000 ft.