Quote Originally Posted by Kiltedmusiclover
Bob,

We traveled to Scotland in September 2005. It was a great time of the year.
The main tourist season is mostly over by the end of August.
We took a tour of Edinburgh Castle and our guide said that in the middle of August you could hardly walk through the castle.

Temps are still quite nice.
As others have said you need to always be prepared for rain.
You are likely to get some overcast days but that holds true for most of the year.

We loved Edinburgh, the Isle of Sky and Inverness. I also highly recommend some of the distillery tours if you care for whisky. I did not really like Glasgow but the rest of Dayz list is a great start.
Don't leave Oban off the list, as it was a great city to visit. I didn't care too much for Glasgow either, though we had a great time none the less. Edinburgh is great, as is Inverness. Although I enjoyed Portree (Isle of Skye) the most, as we stayed there for a few days and got to know some of the locals.