Tire pressure on the road

Here's a hypothetical, well maybe not so hypothetical. Suppose you are leaving in the morning and the outside temp is 40deg F. You check your tires and find they need to be aired up to 125 psi, so you go ahead and air up to 125 psi. You travel all day then pull over for the night. The next morning you're ready to leave again and the outside temp is now 80deg F. You will most like find that your tire pressure is now higher than 125 psi. So, you now have to let air out to get them back to 125 psi. This is pretty much how it works. That is why all the tire Manufactures suggest you check your tires before leaving and set the psi while they are cold. Doesn't make any difference how hot things get after you set the cold temperature psi. The tires are engineered to withstand high temperatures after being set to the correct psi while they are cold. This is pretty much what I do and have not had any tire problems with about 55,000 miles on the RV tires. So the moral of this story is, check your tire psi before you hit the road and adjust accordingly. Safe travels to all!!!!