With temperatures starting to really heat up it is important to remember to never leave children in hot cars.
According to noheatstroke.org about 37 children die in hot cars every year.
Last year there were 42 fatalities, with 3 happening in South Louisiana.
When outside temperatures reach 90° or warmer it only takes about 5-10 minutes for a car to reach dangerously hot conditions of more than 110°.
I did a couple experiments and cracking the windows did help some but the car still warmed up to 105° after 15 minutes.
Either way those are extremely hot conditions and would more than likely cause any children left in the car to start experiencing symptoms of heat exhaustion.