January Jones frolics outside in the extreme LA summer heat in another scintillating bikini selfie

January Jones took advantage of the Southern California heat wave over the weekend to take some sultry snaps.

The X-Men: First Class star, 42, looked beautiful as she showed off her busty curves in an electric crimson string bikini on Saturday, accessorizing with some artful jewelry and a great pair of sunglasses.

January’s swimsuit featured string ties with gold-tipped tassels, which went perfectly with her charm necklace and flat hoop earrings.

The Mad Men actress smiled at the camera with lifted arms and a dipped hip, wearing shades that had a modern and metallic cat-eye effect.

Her trademark blond locks were back and she sported a delicately colorful shade of peach on her lips. 

‘t’s 103 degrees, literally thirsty,’ Jones captioned the photo cheekily, adding a sun emoji. 

She also shared more on her Instagram Stories, including the same snap as on her feed but now with the tagline, ‘Suns out buns out’.

The mother-of-one also added another shot in the stunning suit, this time showing her posterior with a dramatic over-the-shoulder look and more serious facial expression. 

January’s selfie-filled Instagram feed often sees the starlet in buxom bikini photos, with some swimsuits hearkening back to bygone eras and more vintage styles.

For the Fourth of July, she was in a one-piece swimsuit that was nonetheless very low-cut, along with Daisy Dukes and a large sun hat.

For that post, January sent a video message wishing her followers a happy holiday and telling them to enjoy and be ‘as free as the rules allow’.

On the acting front, Jones has been involved in several recent high-profile TV series, including Netflix’s The Politician as well as Fox’s eerily prophetic The Last Man on Earth, about survivors of a plague that wipes out almost all of humanity. 

That show, starring Will Forte and Kristen Schaal, ran for four seasons from 2015 until 2018.