outflow temperature

Yes, of course. You would need to place observation points. You can take a lot of the steps in the Introductory Tutorial below:

https://www.mikepoweredbydhi.com/-/media/shared%20content/mike%20by%20dhi/flyers%20and%20pdf/product-documentation/feflow-introductory-tutorial.pdf

I was thinking something similar as it is for BHEs, vertical profile of temperature, outlet temperature at the wellhead, on surface, not by the screened section.  
Thanks, E