Here is the forecast for the Iowa State Fair in Des Moines for Friday August 15th

NWS Mostly Cloudy with a slight chance of Showers and Thunderstorms High 77°
WX Underground Mostly Cloudy with a slight Chance of Showers and Thunderstorms High 74°
WHO-TV Mostly Cloudy with a slight chance of rain High 75°
WOI-TV Partly Sunny with a slight chance of Thunderstorms mainly SW High 76°
Weather Channel Partly Sunny High 75°
AccuWeather Mostly Cloudy High 74°