Chicago is bracing for a week of heavy rain and thunderstorms, as reported by local meteorological sources. The National Weather Service has issued a severe weather warning, urging residents to prepare for substantial rainfall and possible localized flooding, especially in low-lying areas. The weather system, advancing from the west, is anticipated to bring moisture-rich clouds, leading to continuous rain showers throughout the week. The forecast includes a high likelihood of thunderstorms, accompanied by the potential for strong winds and hail. Residents are encouraged to secure outdoor items and exercise caution while traveling. Commuters should expect delays and potential detours due to flooded roadways. City emergency services are prepared to respond to any weather-related incidents.