I have been having similar problems, but only the past few days. Normally I have found wgt to be pretty good, and consistent, otherwise I wouldn't know this to be unusual. What I am saying is that the consistency of wgt in the past has made it so I know what to expect with distances under varying wind and elevation conditions.
For example, yesterday I hit my 5 iron (190 yard club) 219 yards with a crosswind, and I hit it to about the 180 mark, so imagine my surprise when it sailed over the green (pin at 188 yards).
Hit my cg wedge (60 yards) 80 yards the other day as well, and today I lost a match because I managed to again clear the green on a par 3 (pin was at 180 yards) with a tailwind, because I hit my 6 iron (175 yard club) more than 220 yards.