The National Weather Service says high temperatures today will end up well into the 90s, with heat index values approaching or exceeding 100 degrees each over portions of central and western Iowa. Breezy southwest winds will increase to 20 to 35 mph this morning. If planning outdoor activities, avoid prolonged exposure to the heat and please take appropriate precautions. Much colder weather will return to Iowa by Tuesday with highs in 48 hours some 40 degrees colder than today!