This depends on what you mean by slightly elevated. Although it is commonly thought that a normal temperature is 98.6 degrees, in reality the temperature can fluctuate around this level, so if your temperature is just a few tenths of a degree elevated about 98.6, that doesn't really mean that you have a fever
Furthermore, temperature is very commonly affected by when and how it is taken. For example if you are using a mouth thermometer and you have recently smoked or had a cup of warm liquid (such as coffee or tea) this can easily raise your temperature a little bit without meaning anything.
On the other hand, if your temperature is in the range of 100 degrees for a few days, this is a 'low grade' temperature and it usually means that your body is fighting off a mild infection, such as a cold virus. You generally don't need to go see the doctor
for this. However, if you notice that the temperature continues to rise or stays elevated, or if you have any other concerning symptoms such as sweats or chills, please see your primary care doctor