With Saturday’s steamy temperatures, this year set a Washington record for most days in the upper 90s. The heat and humidity, the antithesis of football weather, plagued spectators at the University of Maryland game.

Prince George’s County rescue personnel evaluated 29 people inside and outside Byrd Stadium in College Park. Four from inside and three from outside were taken to hospitals, authorities said. “Heat appears to have been the major factor,” said Mark E. Brady, the fire department spokesman.

The National Weather Service thermometer at Reagan National Airport reached a high of 95 degrees. It meant that this year had 29 days of readings at least that high, breaking the record set in 1980, according to the Washington Post’s Capital Weather Gang.

On Saturday night, the airport reported that 1.64 inches of rain fell in two thunderous hours. It was the most of any day in 2012.

And it appeared that the Washington region would have an encounter with Isaac, the former hurricane. Its remnants could affect weather here through Tuesday, the weather service said.