Weekend weather includes scorching heat, air-quality warning

The National Weather Service has issued an excessive heat warning for Thursday and into Friday morning. In parts of Pinal County, an air-quality alert is in place, as well.

Today will be sunny and hot, with a high near 110 degrees F. Skies will remain clear overnight as the low will be around 77.

Friday is expected to be more of the same, with a high temperature near 111. The nighttime low will be around 77.

Saturday will remain sunny but the high will drop to around 107. The overnight low will be about 73 degrees under clear skies.

Sunday‘s forecast includes sun and a high near 104. The overnight low will be around 72.

Temperatures are expected to climb back into the danger zone of 110 and higher at the start of next week.

During a heat warning, there is increased potential for heat-related illness. Those active outside during afternoon hours or those without access to air conditioning are most at risk.

Pinal County Department of Air Quality issued an ozone high-pollution advisory, indicating ozone levels can lead to respiratory problems.