National Weather Service officials forecast high temperatures this weekend reaching the triple digits Sunday, but likely cooling down at the start of next week.

Temperatures will be on a steady rise with today’s high in the low to mid 80s, tomorrow’s high expected to be in the mid to upper 90s, with some areas reaching the 100s and Sunday’s high expected to be 100-105 degrees, according to the National Weather Service.

Monday’s high is expected to be in the mid- to upper-90s, with the decrease in temperature continuing throughout the week.

The air quality for today is 67, which is considered moderate on the Air Quality Index, and is projected to be 100 Saturday, which is still in the moderate bracket, but slightly worse.

EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide, according to AIRNow.

Especially sensitive people should consider reducing prolonged or heavy exertion outdoors, according to the EPA’s website.