Residents near the Illinois River and Wabash River may experience minor flooding, which could impact low-lying areas and riverbanks. Starting next week, the return of high heat and humidity poses risks such as heat exhaustion and dehydration, particularly for vulnerable populations like the elderly, children, and outdoor workers. Prolonged exposure to heat index values around 100°F (37.8°C) can lead to serious health concerns if precautions are not taken.