Sorry about the typo. Should be 2008.
On Windows I was using WeatherLink 6.0.3.
Welcome to the forum Ryan.
Unfortunately WeatherCat does not import Weatherlink files and I'm not sure if Stu plans to add that functionality anytime soon. However, there may be a workaround as it's predecessor (Lightsoft Weather Center)
did offer this functionality back in 2011.
I made the switch from Weatherlink myself in 2012 and managed at the time to run LWC as an interim step, imported the .wlk files from the windows box (data covering 10 years), and then upgraded to WeatherCat.
This is 6 years ago and many things have changed since (MacOS). I have no idea if this workaround would still do the job. Maybe someone else can comment.
Greetings from The Netherlands (where we are experiencing a record breaking hot, sunny and dry summer
).
Jos