It was a victory earned without injured striker Alessia Russo and captain Leah Williamson, though the USA were also missing key players and are in a transition period with several younger stars coming through.
Wiegman wanted her side to control the ball and create chances which they managed to do for large periods.
The USA were also a threat and there were nervous moments in the game for England, who were put under pressure in a frantic and explosive encounter.
Wiegman, usually so relaxed, joked she was “not calm at all” when midfielder Keira Walsh kept the ball inside her own area at one point before passing it back to goalkeeper Mary Earps to hastily clear.
“She loves to play out but I would have preferred her to do it a little higher up the pitch!” Wiegman added.
But former England defender Stephen Warnock believes the hosts showed enough quality and nerve to prove they can compete with the best.
“We brought to Wembley the most successful international team to challenge them. It showed the standard of the [women’s] game,” he told BBC Radio 5 Live.
“This USA team will compete at the highest level at the World Cup and this shows what England under Sarina Wiegman can achieve.”
There is still a long way to go until next summer’s World Cup though, and Wiegman is keen to stay grounded.
When asked if England can be considered the best team in the world right now, she said: “You are the best team in the world when you have won the World Cup. We didn’t.”
Meanwhile, USA boss Vlatko Andonovski “absolutely believes” England are contenders to win next year’s tournament, though he hopes his side will be the team to stop them.
“They have an incredible squad and they showed once again they are very good,” he added.
“If you give them space, they have players who can make a difference. They have an incredible coach and I wouldn’t mind facing them again in the final!”