Your document root (shown at check-fetch-times.php?show=info) is /home/baldwinj1/indiantrailweather.com
So the $cachedir = "/home/baldwinj1/indiantrailweather.com/wxsim_all/cache/"; would appear to be correct,
Yes, all the other paths in the script need to change to /home/baldwinj1/indiantrailweather.com from /home/baldwinj1/public_html