FPUS63 KDMX 192105 SFPIA IAZ001>099-201000- State Forecast for Iowa National Weather Service Des Moines IA 405 PM CDT Tue May 19 2026 .TONIGHT...Partly cloudy. Lows 37 to 43. .WEDNESDAY...Mostly sunny. Highs 58 to 64. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Partly cloudy until late afternoon then becoming mostly cloudy. Chance of showers. Highs 59 to 65. .FRIDAY...Mostly cloudy. Showers likely and slight chance of thunderstorms. Lows in the mid 40s. Highs in the lower 60s. .SATURDAY...Partly cloudy. Slight chance of showers. Lows in the upper 40s. Highs in the lower 70s. .SUNDAY...Mostly clear. Lows 47 to 53. Highs in the upper 70s. $$ 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.