FPUS63 KDMX 192105 SFPIA IAZ001>099-201000- State Forecast for Iowa National Weather Service Des Moines IA 405 PM CDT Thu Mar 19 2026 .TONIGHT...Mostly clear. Lows 39 to 47. .FRIDAY...Mostly sunny. Highs 65 to 79. .FRIDAY NIGHT...Partly cloudy. Lows 39 to 47. .SATURDAY...Mostly sunny until late afternoon then becoming clear. Highs 74 to 86. .SUNDAY...Partly cloudy. Lows 44 to 56. Highs 56 to 70. .MONDAY...Mostly clear. Lows 27 to 33. Highs 48 to 56. .TUESDAY...Partly cloudy. Lows in the upper 30s. Highs 53 to 63. $$ 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.