Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
427 AM CDT Mon Jun 29 2026

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-301100-
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-
427 AM CDT Mon Jun 29 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...TODAY AND TONIGHT

Dangerous levels of heat will occur today with heat index values
of 105 degrees or even higher this afternoon. In addition,
overnight temperatures will remain warm, limiting relief from the
heat tonight and in the nights ahead. An Extreme Heat Warning is
in effect for the entire area.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A dangerous combination of hot and very humid conditions will
continue through at least Wednesday 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. An Extreme Heat Warning is in effect through Wednesday
evening.

There is a chance for thunderstorms throughout the latter half of
the week and into the 4th of July weekend. Strong storms may be
possible across portions of northeast Iowa into extreme northwest
Illinois Wednesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$

12

URGENT - WEATHER MESSAGE
National Weather Service Quad Cities IA IL
116 AM CDT Mon Jun 29 2026

IAZ063>065-067-068-076>078-087>089-098-099-ILZ015-024>026-034-035-
MOZ009-010-291615-
/O.EXT.KDVN.XH.W.0001.000000T0000Z-260702T0300Z/
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, Marengo, Washington,
Aledo, Tipton, Bettendorf, Fairfield, Iowa City, Kahoka, Rock
Island, Wapello, Macomb, Sigourney, Oquawka, Davenport,
Burlington, Monmouth, Keosauqua, Muscatine, Carthage, Moline,
Memphis, and Fort Madison
116 AM CDT Mon Jun 29 2026

...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 10 PM CDT WEDNESDAY...

* 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 to upper 70s.

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

* WHEN...Until 10 PM CDT Wednesday.

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

* ADDITIONAL DETAILS...The extreme heat may persist through late
  week, but thunderstorms and associated clouds may interrupt the
  heat at times Thursday and Friday.

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