Here is the forecast for the Iowa State Fair for Thursday August 13th.
NWS: Partly Cloudy 90° South Wind 10mph
WX Underground: Mostly Sunny 86° South Wind 5-10mph
WHO-TV:Partly Cloudy 88°
KCCI-TV: Partly to Mostly Sunny 88°
ABC5: Partly Cloudy 88°

Grade: A- (It will be humid which kept the grade from being an A or A+)

For who is playing at the Grandstand or what is taking place at the Grandstand each night click here