MINNEAPOLIS (AP) — Students have returned to school in Minneapolis amid some of the most sweltering conditions of the summer.

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Minneapolis public schools have 18 buildings that lack air conditioning and another 11 with only limited cooling, so schools are providing water to help keep students and staff cool and hydrated. Parents were advised to dress their kids in light clothing, while staffers are watching for any symptoms of heat-related illness.

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Temperatures are forecast to approach a record 98 in the Twin Cities Monday, but the humidity will make it feel like 100 to 110 across much of southern Minnesota. An excessive heat warning remains in effect for the region through Tuesday.

Misting stations are operating at the Minnesota State Fair, where around 90 people had been treated for heat-related illnesses through Sunday.

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