Arizona, 2026

Heat in Arizona, June 8 to 12, 2026

June 8 to 12, 2026 · NWS TWC · 6 events in 3 counties and zones

Temperatures in Southeastern Arizona were 2 to 6 degrees above normal with Minor to Moderate HeatRisk. The Pima County Medical Examiner found that heat was a factor in the cause of death for 7 individuals, with 2 having heat as the primary factor and 5 as a secondary factor in their deaths.

Where it happened

Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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  • Floods
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The toll

Deaths
7
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
6

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS TWC wrote it up.

Temperatures in Southeastern Arizona were 2 to 6 degrees above normal with Minor to Moderate HeatRisk. The Pima County Medical Examiner found that heat was a factor in the cause of death for 7 individuals, with 2 having heat as the primary factor and 5 as a secondary factor in their deaths.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before the first event at Jun 8, 2:50 AM MST, 7 hours 10 minutes earlier.

Area forecast discussion, Jun 8, 2:50 AM MST, 7 hours 10 minutes before
Area Forecast Discussion
National Weather Service Tucson AZ
250 AM MST Mon Jun 8 2026

.SYNOPSIS...

High temperatures will remain around today, warming 4 to 8
degree above normal Tuesday into the weekend. Breezy conditions
are expected each afternoon. Increasing moisture may start to
bring slight chances for showers and thunderstorms by this
weekend.

&&

.DISCUSSION...

Elongated trouging over the western United States will persist
through mid-week, while a subtropical ridge will build into the
desert southwest from the east through the second half of the
week. While the strongest circulation from the trough will
remain to the north, it will bring breeziness to southeastern
Arizona each afternoon through much of this week. Where winds
pick up a bit further, fire weather conditions will be elevated,
especially Tuesday through Thursday in Graham county where
winds of 15-20 mph will be likely.

The aforementioned westward expansion of a subtropical ridge
will likely bring a warm-up to southeastern Arizona with
forecast highs rising to 4-8 degrees above normal from Tuesday
onward. Past Thursday however there is some modest disagreement
in guidance regarding high temperatures due to a progressive
increase in atmospheric moisture as mean atmospheric flow takes
a southerly component. Recent model trends bring an impressive
rise in precipitable water over southeastern Arizona,
potentially exceeding 150-200 percent of normal by the weekend.
The overall blend of models struggles to initially produce a
precipitation signal with just slight chances (10-25 percent)
beginning to show up in the forecast this weekend, though there
will definitely still be room for the forecast to shift in the
coming days as the moisture potential evolves.

&&

.AVIATION...Valid through 09/12Z.

Light and terrain driven winds this morning becoming
southwesterly 10-15 kts with gusts to 20 kts after 08/17Z. FEW-
SCT ceilings mainly above 15k feet with scattered cumulus
developing this afternoon mainly near and east of a KTUS-KOLS
line. Aviation discussion not updated for TAF amendments.

&&

.FIRE WEATHER...

Winds through the middle of the coming week will be
southwesterly (becoming west/northwest Wednesday) 12-18 mph
each afternoon with gusts to 25-30 mph. Minimum relative
humidity values should remain fairly consistently 8-15 percent
across desert locations and 12-18 percent in the mountains, with
the potential for increasing relative humidity Friday into next
weekend. Elevated fire weather conditions will be possible each
afternoon through Thursday, especially through the valleys of
Graham county where winds should be a bit stronger.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
None.

&&

DISCUSSION...Edwards
AVIATION...Edwards
FIRE WEATHER...Edwards

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

6 heat. Local standard time, as filed.

Heat, Tucson Metro Area

When
June 8, 10:00 AM MST to 8:00 PM MST
Where
Tucson Metro Area forecast zone
Deaths
1 direct, 0 indirect
Reported by
County Official
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was near normal with Minor HeatRisk. The Pima County Medical Examiner found that heat was the cause of death for an individual in Tucson. The Tucson International Airport ASOS recorded a high temperature of 100 degrees Fahrenheit.

Heat, Tucson Metro Area

When
June 9, 10:00 AM MST to 8:00 PM MST
Where
Tucson Metro Area forecast zone
Deaths
0 direct, 1 indirect
Reported by
County Official
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was near normal with Minor HeatRisk. The Pima County Medical Examiner found that heat was a contributing factor in the cause of death for an individual in Tucson. The Tucson International Airport ASOS recorded a high temperature of 102 degrees Fahrenheit.

Heat, Tucson Metro Area

When
June 10, 10:00 AM MST to 8:00 PM MST
Where
Tucson Metro Area forecast zone
Deaths
0 direct, 1 indirect
Reported by
County Official
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was 4 degrees above normal with Moderate HeatRisk. The Pima County Medical Examiner found that heat was a contributing factor in the cause of death for an individual in Tucson. The Tucson International Airport ASOS recorded a high temperature of 105 degrees Fahrenheit.

Heat, Western Pima County

When
June 12, 10:00 AM MST to 8:00 PM MST
Where
Western Pima County forecast zone
Deaths
1 direct, 0 indirect
Reported by
County Official
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was 8 degrees above normal with Major HeatRisk. The Pima County Medical Examiner found that heat was the cause of death for an individual in Ajo. An Ajo CWOP recorded a high temperature of 109 degrees Fahrenheit.

Heat, Upper San Pedro River Valley

When
June 12, 10:00 AM MST to 8:00 PM MST
Where
Upper San Pedro River Valley forecast zone
Deaths
0 direct, 1 indirect
Reported by
County Official
Coordinates
32.109, -110.569 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was 6 degrees above normal with Moderate HeatRisk. The Pima County Medical Examiner found that heat was a contributing factor the cause of death for an individual in Sierra Vista. A Sierra Vista CWOP recorded a high temperature of 96 degrees Fahrenheit.

Heat, Tucson Metro Area

When
June 12, 10:00 AM MST to 8:00 PM MST
Where
Tucson Metro Area forecast zone
Deaths
0 direct, 2 indirect
Reported by
County Official
Coordinates
32.097, -111.790 (the zone’s center; the record gives no point)

Temperatures in Southeastern Arizona was 6 degrees above normal with Moderate HeatRisk. The Pima County Medical Examiner found that heat was a contributing factor the cause of death for two individuals in Tucson. The Tucson International Airport ASOS recorded a high temperature of 104 degrees Fahrenheit.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Heat, Tucson Metro Area2026-06-0861MaleOutside/Open AreasDirect
Heat, Tucson Metro Area2026-06-0934MaleOutside/Open AreasIndirect
Heat, Tucson Metro Area2026-06-1043MaleOutside/Open AreasIndirect
Heat, Western Pima County2026-06-1222FemaleOutside/Open AreasDirect
Heat, Upper San Pedro River Valley2026-06-1261MalePermanent HomeIndirect
Heat, Tucson Metro Area2026-06-1277MaleMobile/Trailer HomeIndirect
Heat, Tucson Metro Area2026-06-1260MaleVehicle/Towed TrailerIndirect

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2026Every state in 2026This day in weather historyWarnings in Arizona, June 2026

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1352489, 1352491, 1352500, 1352527, 1352530, 1352533.