 Now, from your 24-hour weather station, here's Southern Iowa's most accurate forecast on Atomwa Radio. I'm meteorologist Megan Mulford with a look at your forecast. A heat advisory begins at 1 p.m. this afternoon. Daytime highs approaching 95. Today, under mainly sunny skies, southwest winds 8 to 15 miles an hour. Lows dip down to about 75.