What is the average temperature for someone with dementia? and what would then be considered a fever ?

98.6F: Having dementia does not change what is considered normal body temperature. Normal temperature varies from 97.6 to 99.2 degrees f. During the day. It's lowest in the morning and highest in late afternoon to early evening. Any temperature above 99.4f would be considered a fever. A temperature over 100.2f would be considered a significant fever.