Interactive NWS Alert

Radar valid at 730 pm CDT, Aug 15th 2026

IAZ063-064-067-076>078-087>089-098-099-ILZ015-016-024>026-034-035-
MOZ009-010-160030-
Iowa-Johnson-Muscatine-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Rock Island-Henry IL-Mercer-
Henderson-Warren-Hancock-McDonough-Scotland-Clark-
Including the cities of Marengo, Iowa City, Muscatine, Sigourney,
Washington, Wapello, Fairfield, Mount Pleasant, Burlington,
Keosauqua, Fort Madison, Moline, Rock Island, Geneseo, Aledo,
Oquawka, Monmouth, Carthage, Macomb, Memphis, and Kahoka
436 PM CDT Sat Aug 15 2026

...Hot and Humid into This Evening...

Very humid conditions combined with temperatures in the 80s will
create peak heat indices in the upper 90s to lower 100s through
the early evening. If spending time outside, make sure to avoid
strenuous activities, drink plenty of water, and take breaks in
the shade or in air conditioning.

iNWS is an experimental service intended for NWS core partners, including emergency managers, community leaders and other government agencies only.