It is normal.
With a 5 V supply you are lucky to have 4.9 as positive output.
This is because the 324 is not a rail to rail op-amp, but it goes to some mV from the ground and roughly 500 Mv from the positive supply.
You have some few solutions:
1) Use a LMC662 that is a rail to rail ( but has only two op-amp inside ).
2) Use a resistor ( say 1 KOhm ) to reach the positive supply, but you have not to absorb any current
3) Use a slghtly higher voltage for thepositive supply ( say 5,5 V )
I have no other solution.
Consider that the 324 is quite old ( I used it some 30 years ago ) and that another op amp of that period as the TL084 has 1,5 V from both supplies ( positive and negative ).
Mandi