Weather
Quad Cities Weather Alert: Storm Chances Jump to 90% Monday Night With Flooding Risk Into Tuesday
Davenport, Iowa – Repeated thunderstorms could flood roads across eastern Iowa and western Illinois beginning Monday night, when storm chances climb as high as 90% and the risk for isolated severe wea
By Country Herald Consumer Safety Desk · 2026-09-13T20:22:29.118Z
Davenport, Iowa – Repeated thunderstorms could flood roads across eastern Iowa and western Illinois beginning Monday night, when storm chances climb as high as 90% and the risk for isolated severe weather increases across the Quad Cities region.
According to the National Weather Service Quad Cities office, showers and thunderstorms will remain possible through Thursday. The highest chance for isolated severe storms comes Monday night through Tuesday, while repeated rounds of heavy rainfall could produce flooding in some locations.
Monday begins with a 20% to 50% storm chance and highs from 69 to 80 degrees. By Monday night, precipitation chances surge to 50% to 90%, with lows between 64 and 72.
Tuesday remains active with a 60% to 80% chance of thunderstorms and highs of 73 to 86 degrees. Residents traveling along Interstate 80 and other flood prone roads should monitor warnings and never drive through water covering pavement.
Storm chances continue Wednesday, reaching 40% to 60% during the day and 40% to 70% Wednesday night. Additional showers and thunderstorms remain possible Thursday.
The combination of repeated downpours and multiple storm rounds means conditions can change quickly. More severe thunderstorm or flood alerts could follow Monday night into Tuesday as storms develop.
Three Day Outlook for the Quad Cities
Monday: 20 50% storm chance, 69 80°F. Monday night: 50 90%, 64 72°F. Tuesday: 60 80% storm chance, 73 86°F. Tuesday night: 50 80%, 55 65°F. Wednesday: 40 60% storm chance, 69 81°F. Wednesday night: 40 70%, 61 69°F.