Extreme Heat Warning for Phoenix Metro Area Through Monday
This alert is no longer in effect.
NOAA issued it on May 16, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
An Extreme Heat Warning remains in effect for the Phoenix metropolitan area from 10 AM Sunday to 8 PM MST Monday, with afternoon temperatures of 105 to 109 degrees expected.
Read this weather record in 30 seconds
- Record type
- Extreme Heat Warning
- Affected area
- Phoenix Metro Area, Arizona
- Issued
- May 16, 2026
- Issuing authority
- NWS Phoenix AZ
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Phoenix Metro Area, Arizona.
Alert Details
Extreme Heat Warning issued by NWS Phoenix AZ. The alert is effective from 10 AM Sunday to 8 PM MST Monday.
Affected Areas
Northwest Valley; Buckeye/Avondale; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/Paradise Valley; East Valley; South Mountain/Ahwatukee; Southeast Valley/Queen Creek.
What You Should Do
Take extra precautions if you work or spend time outside. Reschedule strenuous activities to early morning or evening when possible. Know the signs of heat exhaustion and heat stroke. Wear lightweight, loose-fitting clothing and drink plenty of water. Schedule frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool, shaded location. Heat stroke is an emergency—call 911. In Maricopa County, call 2-1-1 for cooling centers, transportation, and water.
Expected Conditions
Dangerously hot conditions with afternoon temperatures of 105 to 109 degrees and major heat risk.
Timeline
The warning is in effect from 10 AM Sunday, May 10, through 8 PM MST Monday, May 11.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,083 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 16, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.