 Now, from your 24-hour weather station, here's Southern Iowa's most accurate forecast on Ottumwa Radio. I'm meteorologist Megan Mulford with a look at your forecast. Chance of thunderstorms tonight, otherwise cloudy skies. Lows level off around 65. South winds 5 to 10 miles an hour. Cloudy skies expected again tomorrow. Slight chance for storms. Daytime highs approaching 82. Right now, it's 75 degrees.