Back to Home
Heat Advisory — Iowa, IA, Johnson, IA, Cedar, IA, Muscatine, IA, Scott, IA, Keokuk, IA, Washington, IA, Louisa, IA, Jefferson, IA, Henry, IA, Des Moines, IA, Van Buren, IA, Lee, IA, Rock Island, IL, Henry, IL, Mercer, IL, Henderson, IL, Warren, IL, Hancock, IL, McDonough, IL, Scotland, MO, Clark, MO
Issued
1:00 PM CDT · Mon, Aug 31 2026
Expires
7:00 PM CDT · Wed, Sep 2 2026
Issuing Office
NWS KDVN

Affected Areas

Iowa, IA Johnson, IA Cedar, IA Muscatine, IA Scott, IA Keokuk, IA Washington, IA Louisa, IA Jefferson, IA Henry, IA Des Moines, IA Van Buren, IA Lee, IA Rock Island, IL Henry, IL Mercer, IL Henderson, IL Warren, IL Hancock, IL McDonough, IL Scotland, MO Clark, MO

Official Bulletin

419
WWUS73 KDVN 301804
NPWDVN

URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
104 PM CDT Sun Aug 30 2026

IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-016-024>026-034-035-MOZ009-010-310800-
/O.NEW.KDVN.HT.Y.0009.260831T1800Z-260903T0000Z/
Iowa-Johnson-Cedar-Muscatine-Scott-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 Kahoka, Iowa City, Macomb, Washington,
Carthage, Memphis, Moline, Marengo, Monmouth, Fairfield, Sigourney,
Wapello, Fort Madison, Oquawka, Burlington, Mount Pleasant,
Davenport, Muscatine, Keosauqua, Aledo, Bettendorf, Tipton, Rock
Island, and Geneseo
104 PM CDT Sun Aug 30 2026

...HEAT ADVISORY IN EFFECT FROM 1 PM MONDAY TO 7 PM CDT WEDNESDAY...

* WHAT...Heat index values up to 105 expected.

* WHERE...Portions of northwest and west central Illinois, east
  central and southeast Iowa, and northeast Missouri.

* WHEN...From 1 PM Monday to 7 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

* ADDITIONAL DETAILS...Thunderstorms and cooler storm outflow may
  interrupt the high heat at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air-conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

&&

$$

JTS