Davenport, Iowa – Iowans should brace for dangerously hot conditions and a chance for thunderstorms starting Monday, July 28th, as a summer weather alert stretches across eastern Iowa into parts of Illinois. Afternoon heat index values could spike to 108°F in some areas, followed by a risk of late-day showers and storms that may impact travel along I-80.
According to the National Weather Service Quad Cities, highs will reach 91–93°F Monday, with isolated thunderstorms developing after 7 a.m. and increasing through the evening. South winds around 5 mph may offer minimal relief. A 30–40% chance of rain and lightning remains into Monday night, particularly for Scott, Clinton, and Muscatine counties.
Localized downpours may create brief flooding in low-lying or recently saturated areas. Storms could also disrupt evening commutes and utilities. Residents are urged to stay hydrated, limit outdoor activity, and avoid peak sun hours. If storms intensify, brief power outages or tree damage are possible.
Fog remains a lingering concern north of I-80 early Sunday but clears before Monday’s heat arrives. Spotters are not anticipated to activate overnight, but future updates may be issued if storm strength increases.
Five-Day Forecast for Davenport, Iowa (July 28 – August 2):
- Monday (7/28): High 91°F, heat index near 108°F, 30% chance of storms by evening
- Tuesday: High 93°F, 40% chance of p.m. storms, warm overnight low around 72°F
- Wednesday: High 81°F, 50% chance of storms, clearing by night
- Thursday: Mostly sunny, high near 78°F, cooler breeze
- Friday: Dry and calm, sunny with a high near 77°F
Stay tuned for weather alerts as conditions evolve Monday into Tuesday.
