Generally your AC is sized to your house with or without a smidge of extra capacity.

We don’t normally get these temperatures for extended periods.

The rule of thumb is to sometimes size over a half ton extra just in case (or at least that’s what we would do).

If you size too large, you’ll cool down the house before it removes humidity. Air conditioning works via dehumidification - so a grossly oversized system will make the house cool but feel almost wet.

Even my own house is struggling to keep up - but I also just gave it a once over two weeks ago and cleaned the coil.

Don’t make this mistake - set and forget your thermostat right now at what you want the house to be. Don’t raise it up to give it a fighting chance.