Westwood joined the Owls last summer and he has gone on to make a huge impression during his debut season at Hillsborough.
The Republic of Ireland international stopper has been one of Wednesday's most consistent performers and Weaver, who is currently working with the club's youngsters, paid tribute to the 30-year-old today.
“Since moving to Wednesday, Keiren has been a revelation," Weaver explained. "He has been a quality keeper for a number of years but it’s the first time, since he was at Coventry, where he’s had a proper run of games and got back into the groove. He has done great.”
Weaver's praise is sure to boost Westwood's confidence even further and he will be very pleased with the direction his career has gone in since moving to Wednesday.
The shot-stopper had struggled for appearances for his three years at Sunderland, but he has shown no signs of rustiness since moving to Hillsborough.
It means that manager Stuart Gray has a solid platform to build his side upon for next season and Westwood will be hoping that he sees an increase in quality in front of him.
Wednesday have money to spend over the summer and the expectation is that they will be in with a chance of mounting a promotion push in the 2015-16 campaign.