 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 continues until 8 p.m. tonight. A severe thunderstorm watch continues until 11 p.m. tonight. Lows dip down to about 71 tonight under partly cloudy skies with a chance for isolated rain showers. Northwest winds 8 to 15 miles an hour. Currently, 95.