The presenter, 38, wore a burgundy knitted jumper from Whistles and a matching pair of leather trousers from Kate Spade New York, which cost £895.
Holly finished the look with a pair of burgundy suede heels.
Holly captioned the post: "Morning Tuesday... let’s do this!!!!"
Fans were divided over the outfit, with many not keen on the trousers.
One person commented: "Oh dear, sorry don't like that look. If you are cold, then bring back the skirts and tights as those suit you much better."
Another wrote: "Not keen on the trousers," while a third said: "I don’t think the trousers would be flattering on anyone, not a fan I’m afraid."
Others loved the look.
One said: "What’s with people's negative comments? That outfit looks fabulous on you @hollywilloughby."
Another wrote: "Those trousers are fantastic," while one added: "Love the outfit and colour on you."
Meanwhile, on today's show, Holly and co-star Phillip Schofield left viewers in hysterics as they tested out umbrellas with a wind machine.
I don’t think the trousers would be flattering on anyone, not a fan I’m afraid.
The pair were joined by Alice Beer, who presented the best brollies to keep you dry in the rain.
But when they tested the umbrellas against a wind machine, Alice was left blown into a wall and Phil's umbrella hat was whisked off his head.
— This Morning (@thismorning) October 15, 2019
Viewers branded the segment "TV gold" and shared their thoughts on Twitter.
One person tweeted: "That umbrella test was TV gold! Hilarious!" while another wrote: "In absolute stitches watching the umbrella testing making working from home a lot more entertaining."
— Amy (@geordiegalg) October 15, 2019
— KazaL (@KSL2710) October 15, 2019
A third added: "This umbrella testing in the wind is hilarious and has made me laugh so much, anyway the best thing is not to put up an umbrella in the wind!"
This umbrella testing in the wind is hilarious & has made me laugh so much anyway the best thing is not to put up an umbrella in the wind #ThisMorning
— Arlene Woollard (@Arlene_HWycombe) October 15, 2019
That has to be the funniest segment ever!! Who knew umbrella's could be so funny. 😂 #ThisMorning
— Vanessa (@vananna36) October 15, 2019
— Lara Jane Waddington (@LaraJane92) October 15, 2019
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