Showers for race day????

Just checked Tempe’s 10 day weather forecast.
Sunny, sunny, sunny, sunny, sunny, sunny, sunny, showers, mostly sunny, sunny.

Hold that thought. Step back. Wait …. showers on Sunday, November 21st.
Showers on race day?!?!
Will somebody please start doing the dry, cool, no wind dance?
Please, pretty please with a cherry on top!