Senior centers in Frederick, Brunswick, Urbana and Emmitsburg will be open in the morning and afternoon. Seniors can sit in the air conditioning, in front of fans and drink water. They can also take part in activities like quilting and tai chi.
The department encourages people to check on their older family members and neighbors with the scorching temperatures.
"In the morning when you get up, it's pretty warm, so cool it off, and come in here while it's being cooled," says Emilie Angelety.
Seniors can call the centers for information:
Brunswick Senior Center, 301-834-8115
Emmitsburg Senior Center, 301-600-6350
Frederick Senior Center, 301-600-3525
Urbana Senior Center, 301-600-7020