Pittsburgh Weather: Smoky skies cause unhealthy air quality for all Pennsylvanians

PITTSBURGH (KDKA) -- Smoke from Canadian wildfires will be back Wednesday, creating unhealthy levels of pollution for everyone across the state.

The Pennsylvania Department of Environmental Protection issued a code red air quality alert for Wednesday. Everyone is encouraged to limit their outdoor activities, especially children, older people and those with respiratory conditions. 

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We actually had a cool front that rolled through yesterday afternoon. The front came through dry but it will have an impact on our weather with highs today only hitting the mid-70s. Yesterday's highs, with thick haze, hit 78 degrees. I have noon temperatures right there at 70°.

Looking ahead, an upper low continues to move south today and Thursday.  

The low will be close enough on Thursday for us to see convective-driven rain and storms for the afternoon.  I am still keeping this rain chance in the isolated chance at just 30 percent.  

I have today's rain chance at 20 percent. 

The best chance for rain for the week comes on Sunday night into Monday morning with more than a half inch of rain expected region-wide.  

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