Currently, the "weather" widget only displays when you use the keyword "weather". However, it should also display when using the word "temperature"!
Here's a sccreenshot of it not showing up when we use "temperature".
User types "temperature in Tampa", and the weather widget gives the current temperature. It's like how other search engines like Google and Bing do it.
I'm trying to get my wife familiar with Kagi, and when I typed "temperature in Tampa" and it didn't show the weather, she said in her mind that was a fail!