Iowa Weather Alert: Des Moines Face Thunderstorm and Heavy Rain Threats Through Wednesday Night

DES MOINES, Iowa — Drivers across central Iowa should prepare for thunderstorms and heavy rain through Wednesday, with conditions threatening to disrupt commutes and increase roadway hazards. The National Weather Service in Des Moines warns that storms could develop late Tuesday and persist through midweek, creating standing water on Interstate 35 and reduced visibility across central Iowa.
Midweek Storm Hazards
The highest risk for thunderstorms arrives Wednesday afternoon, when strong downpours may reduce visibility to just a few hundred feet. While severe weather is not expected, forecasters note that weak funnel clouds remain possible, alongside gusty winds and locally heavy rain. Drivers are encouraged to allow extra travel time, avoid flooded intersections, and remain alert for fast-changing conditions.
By Wednesday night, rainfall may begin to accumulate, particularly in Polk, Warren, and Dallas counties, where road flooding could pose travel delays. Officials recommend that residents adjust plans to avoid outdoor exposure during peak storm periods.
Extended Rain and Travel Outlook
Thursday is projected to be wetter, with showers likely throughout the day and rainfall totals reaching up to half an inch. Isolated thunderstorms could extend into the afternoon, adding to already saturated roadways. By Friday, the unsettled pattern continues, with highs only in the upper 70s and additional storm chances.
Saturday offers little relief, as another round of thunderstorms could return by late evening. Conditions improve by Sunday and Monday, when sunshine is expected to dominate and highs rebound into the lower 80s, signaling a brief return to seasonal stability.
Five-Day Forecast for Des Moines
- Wednesday: 40% chance of storms, high 88; low 64.
- Thursday: Showers likely, high 85; rainfall up to 0.5 inch.
- Friday: More storms possible, high 78.
- Saturday: Chance of storms, high 79; evening showers possible.
- Sunday: Mostly sunny, high 83.
Residents across Des Moines and central Iowa should prepare for a stormy midweek that brings both heavy rain and travel disruptions, before calmer conditions return late weekend. For more weather updates and community coverage, stay with ChicagoMusicGuide.com.