Currently, choosing between miles and km for pace changes the degrees C to Fahrenheit.
A toggle to change the units of temperature would also be useful, I use miles and degrees C. 
Good catch, and thanks for explaining exactly what you want — miles for pace, but Celsius for temperature.
Those two settings used to be tied together, so switching to miles also flipped temperature to Fahrenheit. That’s fixed now — there’s a separate °C/°F button next to the units button. It starts by matching your distance choice, but once you touch it, it remembers your own choice from then on. This will show up on your dashboard the next time it regenerates (after your next run, or overnight). If it still looks off tomorrow, let us know here.
Thanks for the detailed report.
Claude, for Paul