Update: 4:50 p.m. A severe thunderstorm warning has been issued for Rowan County until 5:45 p.m., with 60 mph wind gusts and quarter-sized hail.

People who have heart or respiratory problems, children and older adults will have to face another code orange air day today. Another air quality action alert has been issued, from 10 a.m.-8 p.m., Ground level ozone is the culprit and may approach or exceed unhealthy standards.

The Charlotte area ended up with a code red air day Tuesday, meaning the air was unhealthy for everyone. Hot days with little wind cause a buildup of ozone and other pollutants.

This muggy morning, we have a 20 percent chance of showers. After 9 a.m., the chance of rain increases to 50 percent, with mostly cloudy skies and a high of 89. Winds will be calm until this afternoon, when south southwest wind will blow at just 5-7 mph. A tenth to a quarter inch of rain is possible.

Some of the storms today could become severe, with damaging winds, frequent lightning and flash flooding.

Tonight also has a 50 percent chance of thunderstorms and showers, mainly before 2 a.m. Fog will form near daybreak. The low will be 71 with south southwest winds at 3-6 mph.

Thursday has a 20 percent chance of showers and storms. It will be mostly sunny and hot, with a high of 92. Winds will come from the west northwest at 5-8 mph. The chance of rain goes up to 30 percent Thursday night, with a low of 72 and west southwest wind at 6 mph.

Friday also has a 30 percent chance of showers, mainly in the morning. It will be mostly sunny and not as hot, with a high of 85 and north wind at 6-10 mph. Friday night has a 20 percent chance of showers and mostly cloudy skies, with a low of 62.

Saturday continues to look great, with mostly sunny skies and a high near 80. The low will be a cool 60 degrees.

Father’s Day will be sunny with a high of 81 and a low of 63.

Monday warms up to 87 under sunny skies. The low will be 68.

Warmer yet for Tuesday, with mostly sunny skies and a high of 91.