Weather inconsistencies with Siri

I frequently ask Siri for the weather. I will ask “what’s todays weather” “what is the high/low today” and I’ve learned that when I ask for the low at night around 10pm, I have to ask for the low tomorrow as well because they are two different answers (important if I need to cover my plants)

This baffles me though. We are in a heat wave and I ask “what’s todays weather” and get the first answer (see pic). I asked the question at 8am

I then ask what the high will be. Huge difference!

Today she told me the average will be 85 and when prodded she told me the high will be 97.

How do I ask the question to get the full answer in one shot?