And dominate they did. Re-energised and ready, Weir was leading from the front.
Two assists were provided in the first half, when she had a few sniffs of her own at goal, but it was after the break when the midfielder truly started banging on the door for a goal.
Andreatta’s side had, deservedly, fought back twice to level the game at 2-2 at half-time, but Euro 2025 hosts and quarter-finalists Switzerland, restored their lead swiftly into the second half.
Weir, along with numerous team-mates, had the opportunity to haul them back level again. No-one was more desperate than her to do so.
With each skied, skewed or saved shot, the midfielder appeared to grow in angst. Those in the stands certainly did.
Until, at two goals down and just under 15 minutes left, she slotted home. Dream, achieved. Or not.
Referee Abi Byrne was booed as she denied Weir, and Dunfermline, of their fairy tale moment for a handball in the build-up – the Scotland star said post-match she thought it was “unlucky” but was told “that’s the rule”.
It seemed an unspoken one that Weir was sure to have her moment, though. And in added time, it came.
A perfect pick-out from Martha Thomas presented Weir with the picture she’d envisioned from her early days in football – a sight, and shot, at goal at East End Park.
“It was such a cool moment for me to score in front of the Norrie McCathie stand, that has been a dream of mine since I was really young,” an emotional Weir told BBC Scotland.
“I’ve enjoyed every minute [of being here]. For me it’s been great and I think the girls have enjoyed it as well.
“My parents still live in Dunfermline, it’s still a massive part of my life so it really means a lot to be here.”
A few weeks ago Weir was in a red frock in France, walking the red carpet at the Ballon d’Or ceremony. On Tuesday, drenched, she was describing her goal in Dunfermline – a moment which “ranks right up there”.
East your heart out, Paris. The Kingdom of Fife rules.