Sneaked in a late afternoon ride on GM/Zorro/DR/MW (Tuesday). I rode from Coyote Gulch park up through the Alameda tunnel and went west on the GM south trail. Rode up Zorro - DR - MW - DR - Zorro and home:
Can't speak for all of GM but the couple of miles on the lower south trail were not bad. I only ported for about 10 yards, the rest was dry/damp with no mud/clay build up on the tires. Some puddles but where mud it was typically on just one side of the trail and easily avoidable.
Zorro - two short portages close to the bottom otherwise fine.
DR A few puddles/wet spots - the first set of stairs after Zorro which tend to be wet were not bad at all. I was able to climb them all without spinning out or dabbing. (not the case with the second set, but they were dry!)
MW - Great shape. only one 10 yard portage right as you get on the trail (the stream overflowed). Still some puddles and damp spots but not 'muddy'.
I got more mud on the bike going through the Alameda tunnel than the whole rest of the ride.
If no further rain Tuesday (and it looks good right now). These spots should be good to go Wednesday with just a little care and portage necessary.