In this release, there is a feature on the brief screen where you can bring up a weather forecast, but it only shows Celsius is there no Fahrenheit option for the US?
All the other preferences for temperature are set to Fahrenheit
Guiv2 is still in beta and the weather function is not yet functional, more just a placeholder. I would imagine that when they get around to fully integrating it's function they will have the option to set fahrenheit.
