32°32'N / 110°52'W / Altitude 1012 m / 23:50 2026/03/18, America/Phoenix (UTC-7)
From: 2026/03/18, 13:01
To: 2026/03/19, 05:15
* WHAT...Dangerously hot conditions with high temperatures of 100 to 108 degrees expected. The hottest days are currently expected to be Friday March 20 and Saturday March 21.
* WHERE...South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, and Western Pima County.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Southeast Pinal County including Kearny/Mammoth/Oracle,Pinal
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.
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.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when possible and
drink plenty of water.
NWS Tucson AZ
2026/03/18, 13:01From: 2026/03/18, 13:43
To: 2026/03/19, 02:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 100 to 106 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Apache Junction/Gold Canyon, Cave Creek/New River, Dripping Springs, Fountain Hills/East Mesa, New River Mesa, Rio Verde/Salt River, and Superior.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
PinalAn Extreme Heat Warning means that a period of very hot
temperatures, even by local standards, will occur. Actions should be
taken to lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible
and drink plenty of water.
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.
Public cooling shelters are available in some areas. Consult county
officials for more details.NWS Phoenix AZ2026/03/18, 13:43From: 2026/03/18, 13:43
To: 2026/03/19, 02:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 100 to 108 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Portions of south central and southwest Arizona.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
PinalAn Extreme Heat Warning means that a period of very hot
temperatures, even by local standards, will occur. Actions should be
taken to lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible
and drink plenty of water.
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.
Public cooling shelters are available in some areas. Consult county
officials for more details.NWS Phoenix AZ2026/03/18, 13:43