Iowa-Illinois Weather Alert: Thunderstorms Expected by Sunday Afternoon — 92° Heat in Davenport

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Davenport, Iowa – Heat builds into the Quad Cities this weekend, but Sunday could bring more than just sweat — thunderstorm risks rise sharply by midday. While Saturday stays calm with highs near 92°F, Sunday’s system threatens heavy rain, lightning, and possible flooding starting late morning.

According to the National Weather Service in the Quad Cities, isolated showers may develop before 10 a.m. Sunday. A more organized line of storms is expected to sweep through Davenport and nearby areas between 10 a.m. and 7 p.m., with a 60% chance of precipitation and isolated downpours possible. Some storms could bring gusty winds and brief flooding, especially along highways like US-61 and near low-lying areas.

Residents should avoid outdoor activities during peak storm hours Sunday and charge devices ahead of time. Showers may persist through Sunday night with another 50% chance of rain and storm activity — potentially affecting travel plans or early commutes Monday.

Saturday will offer ideal summer weather — mostly sunny, calm winds, and no rain in sight. Monday trends cooler, with a 30% chance of leftover showers before skies gradually clear and highs reach 88°F.


🌤️ Five-Day Forecast for Davenport, Iowa (June 27 – July 2):

  • Friday: Gradual clearing, high near 86°F
  • Saturday: Sunny, high near 92°F
  • Sunday: Thunderstorms likely after 10 a.m., high 92°F
  • Monday: Showers possible early, then clearing, high 88°F
  • Tuesday: Sunny and mild, high near 87°F

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