Friday
Latest GFS model run remains dry for much of the day, but a brief shower is possible after 2PM. Otherwise skies will be mostly sunny, with the afternoon highs in the upper 70s, around 77. Winds will be shifting from the west to the southwest by the late afternoon, averaging around 5 MPH. Chance of rain is really low during the afternoon, at 20%.
Saturday
There is a small chance for rain during the morning and early afternoon hours, then increasing during the late afternoon and evening hours. It will be a mostly cloudy day, and highs will be in the upper 70s to near 80 degrees, going for 79 degrees at this point. Winds will be out of the south to southwest around 5 MPH. Rain chances before 2PM will be around 10%, but increasing to 30% after.
Raceday
It will be a day that features a mix of sun and clouds, and there is a very small chance of a shower or storm during the day. Rain chances during the race will be around 20%, and will rise to 30% after 2PM if the race goes into that hour. I have a strong feeling at this point that the race will be dry. Afternoon highs will be in the upper 70s, near 78 degrees. Winds will mainly be out of the west at 5-8 MPH.