Active Weather Alerts
River Flood Warning
Issued: 1:56 AM Jun. 20, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE MONDAY EVENING... * WHAT...Minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...Until late Monday evening. * IMPACTS...At 15.0 feet, Water reaches the bottom of the levee surrounding Marengo. Water affects low lying agricultural land along the river. * ADDITIONAL DETAILS... - At 8:00 PM CDT Friday the stage was 14.7 feet and rising. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 15.5 feet early Sunday morning. It will then fall below flood stage Monday afternoon. - Flood stage is 15.0 feet. &&
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