Jungfrau weather in July?

Question

How is typical weather on Jungfrau in middle of July? What are the chances of cloud covers on most days? Should I keep my schedule flexible enough to change depending upon the weather? In my current plan I have a fix day to visit Jungfrau but if the weather is a concerne than I need to change my plans.

Answer 1

warm but the weather can change twice the same day, the rain is very cold.

Answer 2

You need to be flexible.  There is no point in visiting the Jungfraujoch if the summit is socked in by clouds.

I have been up there in July during a snow storm, and also when there wasn't a cloud in the sky.  Take a jacket, gloves, and hat as it won't be warm outside except in the sun.  Take sunscreen if you plan to be outside very long.