Do you have temperature profiles? If so do you have an “away” profile? We do and I have the away profile set 5 degrees higher than other profile settings.

Has anyone mentioned the AC Start capacitor? Supposedly this is the number one reason for AC performance loss. If the Thermometer is set for cooling and you notice that the temp difference between set temp and actual temp is increasing , your first check should be the outdoor fan. If the fan is not turning or turning slowly, there is a high chance that the AC Start capacitor has failed. Sometimes a manual assist can get it going. (use care, no hands, I've used a thin twig). If the fan starts its normal speed, the unit will start producing cool air until set temp is reached and then stop. It may not start again unless urged again. The start capacitor (if working) normally assists the start.

These start capacitors cost around $20 on Amazon.

Check this UTUBE Video https://www.youtube.com/watch?v=FQisFmMtAis

IMO if you got thermostat set at 83 the house should be 83 to 84. IMO your ac not working either compressor not kicking on as mentioned start capacitor or thermostat not calling for cooling. Humidity IMO has nothing to do with actual temperature only how human body react to humidity.

First find out if the outside fan is on and blowing hot air. If it isn't and then time for a tech unless you have a DIY friend to investigate further.

The humidity seems okay (below 60%). I would pay more attention to that until you can figure out the stat difference. I had problems with another home getting warmer air from the wall behind the stat. I sealed up the hole behind the stat so it better sensed the room air and temp and not air from the wall cavity.

Thermostat
 

Something is obviously wrong with the unit

You ARE OK! The perfect humidity for your house is 50-55% per the HVAC companies. That is what you want to have it be all year round. I leave every summer, and I bank my house at 85 degrees. I have a smart thermostat so I can see my temperature and humidity from my camper in NY. My house stays right at 50-55% humidity. When I do see it rise to 60% I turn the temperature down to 80 and the humidity drops to 50% or less, and I know all is OK, because the A/C unit brought it down within hours. Humidity is what you look for not temp. %%% is perfect + or - 5%.

When we are away for an extended period, we set our A/C at 80 degrees and our humidity at 55%. When the humidity gets above 55% the A/C turns on and runs until humidity is back to the proper setting. A/C does not turn on at a house warm level, but on at a humidity level. At least that was what was told by builder. Our home was built 12 years ago so our thermostat has humidity settings for time away.

not ok

95% the drain condensate line needs to be vacuumed out and then flushed with hot water — not vinegar. Just hot water from the tap. That will clear the shutoff switch and the AC - not just the blower - will fire back up. I own two homes here and proactively flush mine monthly so vacuuming the line is not necessary.

Trust me. It’s not your thermostat. It’s not your electric panel. And it’s not the underpants gnomes. 😎

You should have a humidistat connected to your thermostat so you can set the humidity accordingly - in addition your a/c may have a problem as mine once did that and needed a shot of freaon??

Check Ecobee
 

I'm assuming you have the Ecobee smart thermometer. Log in on Ecobee WEBSITE and click HOME IQ, then SYSTEM MONITOR. This will show you system run times.
I had this problem. Compressor was running $$$ but fan was not. Had new fan installed under warranty (Tank God). System showed constantly running but would not cool because no air movement.

I don’t know where your villa is located, but last week down south of 44 many homes in some villages were affected by a lightning strike on a transmission line in Coleman, that caused a “blink”, which tripped random breakers in our panels. We had 8-10 breakers tripped, as did many villagers here in DeLuna, plus there were some in Richmond and likely other villages down here. We had to call SECO the next day to ask what happened because there was zero communication from them about it. Not likely your issue, but thought I’d mention in just in case.

Positively a problem. A few degrees off is normal but that’s too much.

I've had an Ecobee for years and was not aware you could log in and see that information. Thank you for posting that.