Due to her participation in the 2019 World Cup, Mewis only appeared in 12 regular season games for the Courage in 2019. North Carolina won the NWSL Shield for the third consecutive season. They advanced to the final after defeating Reign FC in the semi-final. Mewis scored a goal in the championship game as North Carolina defeated the Chicago Red Stars 4–0 to win their second consecutive NWSL Championship.