After a cooler-than-usual spring, however, she said she welcomed the warmth.
"We thought it was too hot today, but considering it's spring and it's been like fall, we love it," Ortiz said.
Others welcomed the warmth with open arms.
Tim McGraw said he took advantage of a day off from work to visit Harpers Ferry, W.Va., and Hagerstown. The Cumberland, Md., resident said the heat is a nice change of pace from his home.
"It's real cool up there in that area," he said. "This is wonderful. It gets a little hot in the summer, but you can always find shade."
Penny DeVore said humidity is her only fear. "Ninety's fine as long as it's not too humid," she said. "Then you feel like you can't breathe."
Monday's weather also was ideal weather for about 100 golfers at Municipal Golf Course. Greenskeeper Allen Seacrist said the numbers have fallen off so far this spring because of rain and wind.
"We haven't had a total weekend all spring," he said. Golfers showed up in force on Monday, he said.
Washington County Hospital officials said they had no heat-related cases on Monday. But nurse Johanna Zimmerly cautioned people to take care when the temperature rises.
Zimmerly said people should drink plenty of water or Gatorade during hot weather and seek shade as much as possible.
Zimmerly said the hospital typically does not see heat-related illnesses until it has been hot two or three days in a row.
Temperatures should be "noticeably cooler" today thanks to a cold front coming in from the Great Lakes and Canada, said Alan Nierow, forecaster for the National Weather Service in Sterling, Va.
It's expected to be clear and breezy with daytime highs in the low 70s, dropping to the upper 40s at night, Nierow said.
Wednesday will be colder, with daytime highs in the low to mid 60s and nighttime lows in the upper 40s, he said.
If Monday seemed hot, it is all a matter of perspective. Last year's temperature for May 19 was a record high - 97 degrees.
Staff Writer Kerry Lynn Fraley contributed to this story.