Right now it is looking like riding at the Big M is going to be amazing if you can catch it in the mornings Saturday and/or Sunday.
Friday night and Saturday night are both supposed to get below freezing so the trails will harden up nicely overnight. Based on the forecast you should have until around noon on Saturday to get your ride in with southern sunny spots going to mashed potatoes before the north side of the hill. Not sure yet how late in the morning it will be good on Sunday but you can for sure count on having until 10 or 11 am unless something weird happens.
This should be some amazing spring snow to enjoy!!