FPUS63 KDMX 292105 SFPIA IAZ001>099-301000- State Forecast for Iowa National Weather Service Des Moines IA 405 PM CDT Sun Mar 29 2026 .TONIGHT...Clear. Lows 42 to 48. .MONDAY...Sunny. Highs 79 to 85. .MONDAY NIGHT...Partly cloudy. Chance of rain and thunderstorms. Lows 47 to 61. .TUESDAY...Partly cloudy until late afternoon then becoming mostly cloudy. Chance of showers and slight chance of thunderstorms. Highs 59 to 77. .WEDNESDAY...Mostly cloudy. Rain with snow likely. Lows 29 to 39. Highs in the mid 40s. .THURSDAY...Mostly cloudy. Rain and snow likely. Lows 29 to 35. Highs 42 to 50. .FRIDAY...Partly cloudy. Chance of rain and slight chance of thunderstorms. Lows 30 to 36. Highs 52 to 62. $$ 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.