Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
432 PM CDT Sun Jun 28 2026

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-292145-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
432 PM CDT Sun Jun 28 2026

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TONIGHT

Heat index values over 100 degrees will continue south of
Interstate 80 through sunset. In addition, overnight temperatures
will remain warm, limiting relief from the heat tonight and in
nights ahead.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A dangerous combination of hot and very humid conditions will
continue through at least the first half of this work week and
potentially longer. Peak heat index values between 100 and 110
degrees are likely, along with very warm nighttime lows.
Depending on storms and associated cloud cover, the impactful
heat
may continue through the end of the week.

There is a chance for thunderstorms throughout the latter half of
the week and into the 4th of July weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected tonight.

$$

ERVIN

URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
756 PM CDT Sun Jun 28 2026

IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-024>026-034-035-
MOZ009-010-290900-
/O.CON.KDVN.XH.W.0001.000000T0000Z-260701T0200Z/
Iowa-Johnson-Cedar-Muscatine-Scott-Keokuk-Washington-Louisa-
Jefferson-Henry IA-Des Moines-Van Buren-Lee-Rock Island-Mercer-
Henderson-Warren-Hancock-McDonough-Scotland-Clark-
Including the cities of Mount Pleasant, Rock Island, Muscatine,
Memphis, Burlington, Tipton, Oquawka, Kahoka, Washington, Iowa
City, Carthage, Davenport, Aledo, Keosauqua, Wapello, Sigourney,
Fairfield, Moline, Macomb, Bettendorf, Marengo, Monmouth, and
Fort Madison
756 PM CDT Sun Jun 28 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT TUESDAY...

* WHAT...Dangerously hot and humid conditions with multiple days of
  heat index values of 100 to 110 expected, along with nighttime
  lows not falling below the mid 70s.

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

* WHEN...Until 9 PM CDT Tuesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

* ADDITIONAL DETAILS...There is increasing likelihood that extreme
  heat will persist through midweek and may last into late week.
  Thunderstorms and associated clouds may interrupt the heat at
  times late in the week.

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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

Hazard Report Provided By forecast.weather.gov