Coolant in motor oil

You sure its not due to condensation not warming up the car properly-if not could be a blown headgasket, cracked head or block -intake manifold leak-

I'm fairly certain it's not condensation. Last week when I checked the oil it was at the full mark with a light brown clear color. This week when I checked the oil it was way over the full mark and it was a cloudy brown color. Also when I drove the car on Friday the temp gauge was showing the car heating up and the heater was blowing cold air then suddenly the heater would blow hot air and the temp gauge dropped back down to a more normal temp. Any idea what the cause might be? Thanks.

Coolant making it inside the crankcase-get it pressure tested

You can do a head check, this is a simple chemical test to check for co in the cooling system, do this test to prove or eliminate a head problem.

The bloc chek contains blue chemical fluid that when combustion gas is present in the cooling system it will turn yellow or do it with cooling system pressure tester or 5 gas analyzer