Melanie, who has also starred in Cold Feet and won the Miss Wales competition in 1997, died without warning on Sunday 8 October.
She has left behind her “devastated” husband Rick and two children – three-year-old Kaden and stepdaughter, Taylor, 16.
Rick has now revealed that their toddler son is asking where she is following her sudden and tragic death.
Speaking about the pair’s young son, a devastated Rick said: “Kaden doted on his mummy.
“He is asking where mummy is.
“We had a holiday of a lifetime two months ago in Disney World Florida and my family and I am so glad we did as that has so many pictures with so many memories.
Former Coronation Street and Cold Feet actress Melanie Hughes has died, aged 39, on 8 October [Rick Hughes/Twitter]
“Mel was better looking than all of the Disney Princesses and she will always be my Miss Wales.”
Melanie and her husband got together 10 years ago, saying they had known each other “forever”.
Paying tribute to his late wife, Rick said: “Mel was a lovely soul, she was kind and gentle.
“Mel was so kindhearted and had time for absolutely everyone.
“We are absolutely devastated at the loss of such a wonderful spirit and we will never forget her.”