Weather conditions

Of course, it's dangerous to put too much into a weather forecast but here's what one site is saying:

Clear overnight .. with diminishing humidity

Sunny in the morning .. the humidity will remain low and the temperature is forecast to reach about 27 degrees Celcius by 11am .. with the wind at just 6 miles/hour (so on the light side)

Early afternoon (about 2pm) the weather will change .. the clouds will roll in and the chance of showers will rise as the day progresses ..

So very promising for race day