user28709: I spent an afternoon researching this, and read a lot of material, but with no successful results.  [I really thought this would be a trivial task.]
Is this problem Windows, or WIN10, specific, as the extended characters all seem non-displayable? Regardless, is there a solution?

user6628: The Arduino serial monitor uses UTF-8, per the discussion at http://forum.arduino.cc/index.php?topic=172814.0 -- 
For the U+00B0 degree symbol, you'd send the bytes UTF8 0xC2 0xB0 like this:
Serial.print("°");


28709: <p>I spent an afternoon researching this, and read a lot of material, but with no successful results.  [I really thought this would be a trivial task.]</p>

<p>Is this problem Windows, or WIN10, specific, as the extended characters all seem non-displayable? Regardless, is there a solution?</p>
 6628: <p>The Arduino serial monitor uses UTF-8, per the discussion at <a href="http://forum.arduino.cc/index.php?topic=172814.0" rel="nofollow noreferrer">http://forum.arduino.cc/index.php?topic=172814.0</a> -- </p>

<p>For the U+00B0 degree symbol, you'd send the bytes UTF8 <code>0xC2 0xB0</code> like this:</p>

<pre><code>Serial.print("°");
</code></pre>
