Intermittent squeaking noise from the wheel

Dear all,
Sorry if my question has been posted before but could not find a match for my search.
I experience intermittent and light squeaking from the front wheel (driver side)
- Happens after I drive for a while
- Might be more pronounced when humid weather/morning dew
- Stops when I apply the brake
- No visual clue only sound
- Car has been inspected by Mazda dealer this month...

Please let me know what should I test or look into?
Thanks in advance
Fred