Eastern Iowa and Western Illinois – Stepping outside this afternoon may feel more like walking into a furnace than the middle of summer. Oppressive humidity, dangerous heat, and lingering wildfire smoke are combining to create a challenging day across the Quad Cities region, where both a Heat Advisory and Air Quality Alert are in effect.
According to the National Weather Service in the Quad Cities, heat indices are expected to reach 95 to 105 degrees, with isolated locations climbing as high as 107 degrees this afternoon. The Heat Advisory covers portions of southeast Iowa, northeast Missouri, and west-central Illinois, including areas near Burlington, Keokuk, Fort Madison, Macomb, and surrounding communities.
Forecast peak heat indices include Ottumwa at 107°, Cedar Rapids at 106°, Washington at 106°, Memphis, Missouri at 106°, Waterloo at 103°, Iowa City at 103°, Burlington at 103°, Dubuque at 98°, Moline at 98°, and the Quad Cities near the upper 90s. Morning thunderstorms may slightly reduce temperatures in a narrow corridor near Interstate 80, but confidence remains higher that dangerous heat will develop across much of the region.
At the same time, an Air Quality Alert remains in effect through tonight for eastern Iowa and northern Illinois. Elevated ozone levels combined with Canadian wildfire smoke may produce unhealthy air, particularly for children, older adults, and anyone with asthma or other respiratory conditions.
Keep outdoor activities brief during the hottest part of the afternoon. Drink plenty of water, take frequent breaks in air-conditioned spaces, and never leave children or pets inside parked vehicles. If smoke becomes noticeable or breathing becomes difficult, move activities indoors whenever possible.
Heat and air quality concerns are expected to continue through the day, and additional advisories could be issued if conditions worsen.
