NWS Quad Cities IA ILXH.W 0001June 30, 2026
Extreme Heat Warning: Iowa, Johnson, Cedar and 18 more, IA and IL
The National Weather Service office in Quad Cities IA issued an extreme heat warning for Iowa, Johnson, Cedar and 18 more in Iowa, Illinois, Missouri, which was in force until 10:00 p.m. local time on July 1. It was the 1st extreme heat warning the NWS office in Quad Cities IA issued in 2026. Iowa had 5 extreme heat warnings in June 2026, against 1 in an average June of 2008-2025 (Iowa's extreme heat warnings by year).
ExpiredWarning
In force for 37.8 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Quad Cities IA IL
- Area
- Iowa, Johnson, Cedar and 18 more
- State
- Iowa
- Level
- Warning
- Issued
- 8:14 a.m. CDT, June 30, 2026
- Expires
- 10:00 p.m. CDT, July 1, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KDVN XH.W 0001
- Official source
- National Weather Service: the notice at its source
Extreme Heat Warnings in Iowa since 2008Every warning type in Iowa
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* 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.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.