A heat advisory is in effect from 1-7 p.m. Thursday, June 10, for southern Cass, Crow Wing, Mille Lacs, Morrison and Todd counties, the National Weather Service in Duluth reported.
The high temperature Thursday afternoon is expected to top out around 95 degrees, with heat index values up to 100 expected.
"Hot temperatures and high humidity may cause heat illnesses to occur," the weather service reported.
Brainerd area residents are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
"Young children and pets should never be left unattended in vehicles under any circumstances," the weather service reported. "Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heatstroke. Wear lightweight and loose fitting clothing when possible. "
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location.
There is a 20% chance of rain the rest of Thursday. Rain and possibly a thunderstorm are likely Friday, with a high temperature of 86 expected.