Scans of full copies of vintage Weird Tales are continuing to be archived on Archive.org. Regrettably my WordPress blog refuses to post a link that goes to these uploads sorted by texts-only / upload date. Because it gets freaked out by [] square brackets in the URL, and presumably thinks it’s under attack from script-kiddies. Here’s how to manually filter out the irrelevant ‘relevance’ fluff and sort at Archive.org…
Once that’s done you’ll see there have been ten new uploads in August 2018, and all from the ‘prime Lovecraft’ period.
Fairly dismal cover paintings during this period, by the looks of it, and one can see how the magazine might have struggled to attract new readers on the crowded news-stands.
The latest upload, Feb 1926, printed “The Cats of Ulthar”. This was the first public appearance, it having previously been published only in the amateur journal Tryout in 1920.