KB ID 0000782 Dtd 11/03/13
Providing you have your location setup, Outlook 2013 will give you a three day temperature forecast. However by default that will be in Fahrenheit, if you would prefer this in Celsius then do the following.
1. From within Outlook > File > Options.
2. Calendar > Scroll Down > Change to Celsius> > OK.
3. Now it should display properly.
Related Articles, References, Credits, or External Links