Midwest, including Chicago and Columbus, under flood threat
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A frontal boundary is stalled out across the central U.S., bringing heavy rainfall and flooding to the Midwest.

Rob ShackelfordMiriam GuthrieFaiza Mohammed
ByRob Shackelford,Miriam GuthrieandFaiza Mohammed
3 days agoUpdated: September 21, 2026, 6:34 am EDTPublished: September 20, 2026, 8:00 pm EDT

An elevated threat of flash flooding is expected across the Midwest, with heavy rainfall affecting areas already soaked this week including Chicago into parts of Indiana and Ohio.

Happening now

The map below shows where rain is falling right now, along with any flash flood warnings in the green polygons.

Local flash flooding is possible in cities such as Chicago, Indianapolis and Columbus.

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Day by day forecast

Through Monday morning, the heavy rain threat may linger from northern Illinois through northern Indiana and western Ohio, while also spreading into parts of the Northeast. With the saturated ground from Saturday's rainfall, flooding remains a threat across Chicago to Columbus.

Flooding is possible in the area marked in yellow on the map below.

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How much more rain? 

Additional rain is expected in the darker green on the map below.

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The biggest concern through Monday is the corridor from eastern Iowa into northern Illinois, northern Indiana and western Ohio, where flooding rain fell last week. Additional heavy rain is likely to result in flash flooding and perhaps some river flooding once again.

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Why the flooding?

The rainfall is due to rounds of rain and storms traveling around the outer rim of a heat dome in the Southeast. Any fronts that try to approach slow to a crawl and rain themselves out over the same areas in the Midwest.

The heat dome will stay put through the weekend, and the areas that could see more flooding are highlighted by the graphic.

(MORE: Why the Midwest flooding kept hitting the same areas)

Flood potential setup

With a stubborn area of high pressure in place for the Southeast, rounds of storms are expected to continue to move around this high and lash parts of the Midwest and Central Plains.

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