FPUS63 KDMX 092105 SFPIA IAZ001>099-101000- State Forecast for Iowa National Weather Service Des Moines IA 405 PM CDT Tue Jun 9 2026 .TONIGHT...Mostly clear. Chance of showers and thunderstorms. Lows in the lower 70s. .WEDNESDAY...Mostly sunny. Chance of thunderstorms. Highs 90 to 100. .WEDNESDAY NIGHT...Mostly clear. Chance of showers and slight chance of thunderstorms. Lows 59 to 67. .THURSDAY...Partly cloudy until late afternoon then clearing. Showers and chance of thunderstorms. Highs 76 to 84. .FRIDAY...Clear. Lows in the mid 50s. Highs in the lower 80s. .SATURDAY...Mostly clear. Chance of thunderstorms. Lows around 60. Highs in the lower 80s. .SUNDAY...Partly cloudy. Slight chance of thunderstorms. Lows 55 to 61. Highs in the mid 70s. $$ The State Forecast for Iowa Product (SFP) will be discontinued starting June 29, 2026. A resource document has been created to aid users in this transition and is available at: https://www.weather.gov/media/dmx/RWSResources.pdf.