Round your lips into a tight circle. Lift the back of your tongue toward the soft palate and add voice.

Americans pronounce weigh as WAY (/weɪ/). You'll hear it in sentences like "He forgot to weigh the apples before heading to checkout".
Record yourself saying "weigh" and play it back. The mic stays on your device — nothing's uploaded.
1 syllable, 2 sounds. Explore each sound's mouth shape and how it's made.
Round your lips into a tight circle. Lift the back of your tongue toward the soft palate and add voice.

Start with your jaw slightly open and the front of your tongue forward and slightly up. Glide upward, your jaw closes a little more and your tongue arches higher toward the roof of the mouth.