Michael
The game is tied to live weather via darksky. If you check out this post you can find links to the darksky forecast for each track.
https://igpmanager.com/forum-thread/25269
You will need to work out the difference between the time at the tracks and local time but it should be useful for you.
On the topic of darksky, it looks like it’s API is being discontinued by April 2023, or it least that’s what the website banner says. Does that mean the weather function would no longer work or is there a plan to transition?