FPUS63 KDMX 290905 SFPIA IAZ001>099-292100- State Forecast for Iowa National Weather Service Des Moines IA 405 AM CDT Sun Mar 29 2026 .TODAY...Mostly sunny early in the morning then becoming partly cloudy. Highs 67 to 75. .TONIGHT...Clear. Lows 43 to 49. .MONDAY...Sunny until late afternoon then becoming partly cloudy. Chance of showers and slight chance of thunderstorms. Highs 78 to 86. .TUESDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 44 to 60. Highs 55 to 75. .WEDNESDAY...Partly cloudy. Chance of showers and slight chance of snow showers. Lows 28 to 38. Highs in the upper 40s. .THURSDAY...Mostly cloudy. Chance of showers and snow showers. Lows in the lower 30s. Highs 41 to 47. $$ This forecast covers all of Iowa and is updated twice daily. Broad ranges in temperature depict high variability across the state. For location specific forecasts, please visit www.weather.gov. Please provide feedback on this product to nws.desmoines@noaa.gov.