My sources indicate an hourly rate of liquid precipitation from .07 to .15 inches with an 87 to 98 percent chance of precipitation between 3:00 and 5:00.
These conditions are generally not considered favorable for outdoor juggling, although there are no indications of lightning, so the chance of actually being electrocuted while juggling in the liquid precipitation are minimal.
I hope this information is helpful in deciding whether or not to juggle at Alameda Park today. I will likely not be there.
-Matthew