what is a child normal temp
1 Your child is younger than age 3 months and has a rectal temperature of 100.4 F (38 C) or higher. 2  Your child is age 3 to 6 months and has a temperature up to 102 F (38.9 C) and seems unusually irritable, lethargic or uncomfortable, or has a temperature higher than 102 F (38.9 C).