Iowa-Illinois Weather Alert: Quad Cities Thunderstorms Possible Through Monday Night, September 22

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Davenport, Iowa – Fall weather is bringing a stormy stretch to the Quad Cities, with showers and thunderstorms expected into Monday night. Travelers across I-74 and I-80 should be ready for slick pavement and slower commutes during peak times.

According to the National Weather Service in the Quad Cities, scattered showers may start Sunday evening before thunder develops by Monday afternoon. The chance of storms rises to 40 percent Monday and Monday night, with gusty winds and heavy rain possible at times.

Showers could linger through Tuesday morning, especially for drivers headed into Davenport, Bettendorf, Rock Island, and Moline. Though widespread severe storms aren’t expected, forecasters warn even weaker cells could disrupt outdoor plans and minor flooding is possible in low-lying areas.

Residents should prepare for quick weather changes. Keep rain gear ready for Monday’s school drop-offs and plan for potential travel delays. Calm winds Saturday will give way to breezy conditions by Monday, making it feel cooler after a warm weekend high near 81.

By midweek, conditions turn drier and more comfortable, with partly sunny skies expected Wednesday through Friday. Temperatures settle into the mid-70s, marking a return to typical late-September fall weather.

More updates may follow if storm coverage expands Monday evening.

Five Day Forecast for Davenport, IA

  • Saturday Night: Showers and storms possible, low near 64.
  • Sunday: Mostly cloudy, storms possible after 10 a.m., high near 78.
  • Monday: Showers and storms likely, high near 81.
  • Tuesday: Morning showers, clearing later, high near 77.
  • Wednesday: Partly sunny, cooler, high near 74.

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