Warmer holiday weekend with plenty of sunshine Saturday Morning Forecast 5.28.21 and last updated 2021-05-29 09:02:54-04 GRAND RAPIDS, Mich. â West Michigan woke up to a chilly start this Saturday morning with even a Frost Advisory for some of our northern communities. The sunshine will help us warm up quickly to at least be warmer than yesterday despite afternoon highs still being below average. High pressure continue to bring in dry air helping the area to hold onto Sunday through the weekend only adding a bit of cloud cover for Monday on Memorial Day. Temperatures slowly warm each day eventually pushing back to where we should be for this time of year in the lower 70s.