WINONA, Minn. — With summer heat having arrived, with highs in the low 90s, Winona Health invited anyone without air conditioning to cool off in the clinic lobby. Annette Calteaux, spokesperson said the lobby is open 7 a.m. to 7 p.m. Mondays through Friday and 7 a.m. to 4 p.m. weekends. She listed ways to stay safe in the heat:  Advice.