Summer weather on the way, but not in time for May Long Weekend in Sask. The below-average forecasts "won't be records, but it speaks to how on the cool side it's been. Very consistent with the spring we've seen so far." According to Environment Canada, the forecast for large parts of Saskatchewan includes below-average temperatures — and maybe even snow. Photo by Michelle Berg /Saskatoon StarPhoenix The May Long Weekend is generally considered the unofficial start of summer in Saskatchewan.