"How is Kaunakakai's weather today?"
Translation:Pehea ke anilā o Kaunakakai i kēia lā?
I think it depends a lot on context. Say you live in Boston and someone in San Francisco calls and asks, as a part of a casual conversation, "Howʻs the weather in Boston?" I think itʻs assumed that theyʻre asking about the current weather. However, if you live in Honolulu and have a friend in Boston who is thinking about visiting or moving to Honolulu and they ask "How is the weather in Honolulu?" they might be asking about the weather in general, over the course of the seasons. So I think it depends on whether you think it can be assumed via context or if you want to be specific - Iʻve heard (and said both) in every day conversation in Hawaiian.