Kind of looking for guidance in what types of temperatures I should be expecting. For reference, where I live (southern US), summers are hot and humid - regularly breaks 100 degrees fahrenheit during the summer months.
Here's where I'll be traveling:
Lucerne
St. Moritz
Bernese Oberland
Zermatt
Geneva/Montreux
What are the temps like? How's the weather? Is one city cooler/hotter than another due to altitude? Thanks for your help travel!