These are not considered high temps for a baby. Today may tell you a little more. He may have a sore throat or a virus, it has to run its course. Sounds like you are doing the right things. Dress him lightly, let him stay close to you, don't go out, you don't want him to catch a secondary infection, and you want him comfortable. When children are young, someone is always sick it seems.
I always took a book into the bathroom and read while they played in the tub.
K.
Updated
These are not considered high temps for a baby. Today may tell you a little more. He may have a sore throat or a virus, it has to run its course. Sounds like you are doing the right things. Dress him lightly, let him stay close to you, don't go out, you don't want him to catch a secondary infection, and you want him comfortable. When children are young, someone is always sick it seems.
I always took a book into the bathroom and read while they played in the tub.
K.