Hi, Kim. Too hot is relative and it only matters what your threshold is.

It's not only the heat, but the humidity and how much you do while in it. And how many days in a row you do activities in it.

I personally hate anything over 70. If there's a breeze, maybe a bit higher.

Sonomagirl, You need your breathing evaluated by a pulmonologist right away. You might even need a cardiologist. Please, don't delay.

Annie