The Scotland international struck another sensational effort to hand Gareth Taylor's side a home win against our cross-town rivals, planting yet another exquisite chip over Mary Earps (one year and a day after doing so in the 2020/21 campaign) to snatch all three points in a thoroughly entertaining contest.
Speaking to mancity.com after the game, the midfielder, who was introduced from the bench, says nothing tops scoring a Derby Day winner!
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"There's no better feeling than scoring, especially in a Derby," she smiled. "I'm delighted.
"We needed three points - the most important thing is the team - and we came out on top so I'm really happy for everyone.
"I've not seen the goal back but it felt a little bit better! I just picked the ball up in that area. I try it everyday in training and like last time, sometimes it comes off.
"Luckily again, it came off in a Derby and I'm delighted."
There was further cause for celebration with a 5,317-strong crowd in attendance - an Academy Stadium record - and Weir hailed the vocal and passionate City faithful.
"It was amazing," she added. "Especially scoring, you can't really dream of anything better than scoring a winner in a Derby in front of that support.
"Thanks to all the fans who came out and helped us over the line in the end. We really appreciate their support."
Hear what Caz had to say about her stunning strike and a vital win in the video above...