Iowa–Illinois – Dark clouds are building over the Mississippi River Valley, and the air feels heavy as storms begin to develop across the Quad Cities this afternoon.
According to the National Weather Service, isolated thunderstorms are already forming, with gusty winds and small hail possible through the day. While coverage remains scattered early, conditions may shift quickly with stronger storms developing later.
Rain chances increase sharply into Tuesday night, when storms become more widespread and persistent. Some areas could see rainfall totals high enough to create ponding on roads and reduced visibility, especially along I-80 and U.S. 61.
By Wednesday, confidence grows in widespread rain, with chances reaching near 90 percent. That steady rainfall could worsen ongoing river flooding concerns, particularly near DeWitt where the Wapsipinicon River remains elevated. Water levels near flood stage may impact low-lying roads and nearby communities.
Drivers should avoid flooded roadways and follow posted barricades. Even shallow water can stall vehicles or hide road damage. Plan extra time if traveling through Davenport, Bettendorf, or Rock Island during heavier rain periods.
Temperatures stay mild, reaching the upper 70s to low 80s before cooling slightly midweek. That warmth fuels instability, keeping the storm pattern active.
Thursday offers a brief break with sunshine, but more storms return by Friday into the weekend, extending this unsettled spring stretch.
Five Day Forecast for Quad Cities (Davenport, Iowa)
Tuesday: High 81°F, chance of storms
Wednesday: High 75°F, showers likely
Thursday: High 76°F, sunny
Friday: High 82°F, chance of storms
Saturday: High 62°F, chance of showers
