The National Weather Service continues the heat advisory through Tuesday afternoon. Temperatures once again on Tuesday will rise to the upper 90s however high humidity will make it feel like 105 to 110 degrees.
Republican David Young, who was U.S. Senator Chuck Grassley's top aide, is running for Iowa's other U.S. Senate seat in 2014.
Young said Sunday that after talking with friends and family he decided to run for the Senate seat being vacated by retiring five-term Democratic Senator Tom Harkin.
The GOP Senate race may be a crowded one because Representative Steve King, Representative Tom Latham and Lieutenant Governor Kim Reynolds all decided not to run. Republican former U.S. Attorney Matt Whitaker is already running.
Young says he thinks his experience as Grassley's chief of staff would help him accomplish more in the Senate if he was elected.
Young lives in Van Meter, Iowa, and says he's looking forward to campaigning.
Democratic Representative Bruce Braley of Waterloo is his party's only candidate.