1. Activity shouldn’t be completed – Normally, completed activities are not shown on the look ahead schedule since it has less significance in forecast.
2. Start date of the activity should be within the range of 2 weeks from the Data date. (Data date is the current date or the last updated date of the schedule)
3. Finish date of the activity should be within the range of 2 weeks from the Data date.
4. Activity should be in progress.
Run a filter :
Select ANY of he following
Where Parameter Is Low Vaule High Vlaue
Start is within range of DD or (DD-1W) DD+2W
OR Activity staus equals In Progress
that will get you what you want., since this is using the DD and the DD+2W for plus 2 weeks you do not have to change this everytime.