It’s an article from Yahoo UK. I would expect an article on cars from this source to discuss output in kW and not hp, too.
Those who are care enough about the subject, are numerate, and educated, can do unit conversions.
In this case, F = 1.8C + 32
And for those that are not numerate, or educated, and canot do unit conversions, there is always Google.
This is America. Publish your stuff in American English. Screw conversions. Tell us what it is in Farenheit. Or really show us how brilliant you are. YOU do the conversion and tell us what the temps are in American.