I'm not sure it's connected to the Web exactly like that. AI chatbots are just "fed" very large segments of Internet, but data that is that recent isn't something that I would expect a chatbot to have ingested yet. Last I saw, there's even a disclaimer that GPT's accuracy drops with recency and that stuff from the last year very likely will not be answered properly or at all. That said, idk if it's much better with old old weather data either simply due to obscurity.