Days will grow increasingly hot this weekend, but there is a small chance of rain. Photo by Raquel Hendrickson

This weekend will not only be a little hotter than normal, according to the National Weather Service, but will also likely have bad air quality.

Pinal County Department of Air Quality has issued an Ozone High Pollution Advisory for Friday. This means forecast weather conditions combined with existing ozone levels are expected to result in eight-hour ozone concentrations that pose a health risk.

A decrease in physical activity is recommended. The use of gasoline-powered equipment should be reduced or done late in the day.

Today is mostly sunny with an expected high of 103 degrees F. Tonight’s low is expected to be abound 83.

Friday, the temperature is expected to climb to 107 under sunny skies. The nighttime low will likely be around 84.

Saturday is forecast to be mostly sunny with a high near 109 and increasing breezes. The average high for this time of year is 105. The overnight low will be around 85.

Sunday is predicted to climb to 110 on a partly sunny day. By night, there is a 20-percent chance of rain before 11 p.m. The night will be mostly cloudy with a low around 85.

The chance for precipitation returns on Tuesday, but high temperatures are expected to remain in the triple digits for the week.

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