Widespread rain is likely across western, central, and southern Iowa from late Thursday into Friday. The highest chances and amounts will be in southwestern Iowa, where many areas will receive 1/2"-1" of rain with locally higher amounts possible. A few thunderstorms are likely during this time, but severe weather is unlikely aside from the locally heavier rainfall. Heat and humidity will then return this weekend, with Heat Index values approaching 105 degrees by Sunday and Monday.
Data Courtesy of Des Moines Weather Forecast Office