Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

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Last Map Update: Sat, Aug 9, 2025 at 4:08:09 pm MDT

Watches, Warnings & Advisories

National Weather Service Great Falls, MT

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Lake Wind Advisory

Hazardous Weather Outlook

Short Term Forecast

Lake Wind Advisory

Sturgeon Moon

West winds of 15 to 25 mph with gusts to 40 mph are expected across Fort Peck Lake today through Saturday evening. These winds will produce waves up to 5 feet. Scattered showers and thunderstorms are also possible.