Not online : Registration of Marriage - from the govt of Saskatchwan Vital Statistics dept.
There may be restrictions as to who may be allowed the information.
What time frame are you searching.
Families may have published marriage in the Marriage classifieds of the newspaper.
Some earlier newspapers had Social Pages - some families submitted further information re the wedding - honeymoon destination etc. [ not all did ]
Post the Name/s of the persons you are researching. There may be someone at the board who is family connected or has some information.
Do you know what Church/s the families attended.
Church records may be available.