Actually, the probability of rain in a forecast means that that percentage
of the forecast area will experience measurable precipitation, not that
there is that percentage chance that rain will fall on your head. This
might seem like hair splitting, but depending on the particular
microclimates of the forecast area the individual chance of experiencing
rain could range from 0 to 100%.

"Joseph Bartlo" wrote in message
...
Actually, it could theoretically be as high as 90 % for rain during one of
the 2 days - if no rain the first day increased the probability of rain
the
next.