>mode con cp select=65001

Status for device CON:
----------------------
    Lines:          600
    Columns:        220
    Keyboard rate:  31
    Keyboard delay: 1
    Code page:      65001


>wx.pl
# Identical four "Malformed UTF-8 message 
[18°(25°/13°)Scattered Thunderstorms|☁26°/13°]
/13°]

<p>Certainly an improvement... and given my (wilful) iggerance of codepages and charsets, perhaps one (user) step from being as desired. However, <c> ;echo on