ST. LOUIS - Thursday is set to be mild, the typical norm for mid-August, before the heat returns on Friday.

We do get a bit of a break from the thicker humidity Thursday afternoon now that the weather is driven by a zone of high pressure in the Great Lakes, which is aiding in a cooler, northerly mid-level flow.

The cooler weather will be short-lived because the cold front that passed through the bistate on Wednesday will retreat to the north overnight, transforming into a warm front. This will result in more heat and humidity returning Friday into early week.

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We are currently below the Heat Advisory criteria, but we are approaching that threshold. Afternoon temperatures will top out in the low to mid 90s Friday into the

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