I'm having the same issues. The upper winds appear to be fixed which is great. The airport weather seems to be intermittent. Most of the time the clouds and precip seem to be close. Most of the time... However, the winds on the ground still aren't accurate.
The strange thing is I switched from testing this out in Canada and the US and went to Europe where there was actual 30 kt winds in the metar. The first airport only reported 7 knot winds. I returned to menu (not exit) and selected another airport not even 50km away reporting a metar of 30kts and it worked great. Crosswind, turbulence... Went back to first airport: 7 kts. Work in progress I guess.
Another strange thing I noticed was with the load in wind info box. When you select runway departure and get the moving camera view there is that little info box with airport and aircraft info in the lower left corner. When I loaded in to the first European airport mentioned above for about 1 second the wind actually said 30kts. I watched it suddenly change to 7 right in that info box. That was bizarre.