# Extreme Heat Warning: Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/727483fca94752ec

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-01 20:22 ingested 2026-08-02 08:29

[original source ↗](http://www.weather.gov/)

## extract

Extreme Heat Warning — Western Pima County Including Ajo/Organ Pipe Cactus National Monument; Tohono O'odham Nation including Sells; Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson
Severity: Severe. Certainty: Likely.
* WHAT...Dangerously hot conditions with temperatures 101 to 106 in
Santa Cruz and Cochise counties and 107 to 113 elsewhere. Major to
Extreme HeatRisk is expected.

* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
O'odham Nation, Tucson Metro Area, Upper San Pedro River Valley,
Upper Santa Cruz River Valley/Altar Valley, and Western Pima
County.

* WHEN...Until 8 PM MST Monday.

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

* ADDITIONAL DETAILS...Warm overnight low temperatures of 84 to 90
degrees in the deserts will provide little to no relief from heat
overnight. Warmest overnight low temperatures expected in the
Western Deserts.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.