The weather girl, 39, donned a skimpy white blouse as she warned viewers about a cold front this week, as it heads into a new year.
Hinting at fog, low clouds and frost, it seems that winter is here to stay as January swiftly approaches.
As Lucy turned to the board, her white blouse left little to the imagination as it clung to every curve, flashing the presenter’s figure.
Lucy seemed unaware as she continued to present the segment, telling viewers what to expect from their New Year’s Eve weather.
She later uploaded a picture of her outfit onto social media, as fans rushed to both compliment her and point out her racy wardrobe blunder.
One fan wrote: “Wish I could find a lass as stunning as or even you Lucy, Stunning look, sexy voice would put a smile on my face from dawn to dusk
One cheekily joked that he could see more than he bargained for, adding: “Is it that cold in there?”
A third said: “You’ve got such lovely hair.”
A fourth pointed out: “I can see the cold front already Lucy.”
Meanwhile, Lucy sent fans wild earlier this month as she flashed her legs in a gorgeous black and gold short and blazer combo.
Showing off her outfit, Lucy cut her face out of the photo to let her outfit do the talking for her, and it is safe to say fans were loving it.
GMB continues tomorrow at 6am on ITV.