Daily Brief
July 31, 2026
Friday
⛈️ Weather — Tucson
⚠️ EXTREME HEAT WARNING — in effect now, through 8 p.m. Sunday, Aug. 2. The National Weather Service in Tucson issued the warning at 3:22 a.m. today for the Tucson metro area, western Pima County, the Tohono O'odham Nation, the Upper Santa Cruz River/Altar Valley and surrounding zones, with highs of 107 to 113 and Major to Extreme HeatRisk. NWS warns heat-related illnesses increase significantly during events like this, with warm overnight lows offering little relief.
Today: sunny, high near 111, north-northwest wind 1 to 12 mph with gusts to 22 mph. Tonight: mostly clear, low around 85, west-southwest wind 3 to 10 mph. Saturday: sunny and hotter, high near 112, low around 85.
Outlook: Sunday brings a slight chance of showers and thunderstorms after 5 p.m. with a high near 110, and Monday carries a 30% chance of storms with a high near 108. Overnight lows stay in the low-to-mid 80s through the weekend, meaning limited overnight cooling. Pima County cooling centers are operating, though KOLD reports options remain limited for residents with pets, and University of Arizona researchers are working with the county health department to expand pet-friendly heat relief.
NWS Tucson Forecast API
🚨 Public Safety
Two notice-of-claim filings target Pima County Sheriff's Department. A man who was detained and questioned during the Nancy Guthrie investigation is among three people who have filed a $3.25 million notice of claim against the department, KVOA and KOLD report; KOLD reports hair evidence in the case did not identify a suspect. Separately, AZPM reports a Tucson man left paralyzed by a deputy's shooting is seeking $176 million from the department. A notice of claim is a required precursor to a lawsuit against a public agency, not a filed suit.
KVOA News 4, KOLD News 13, AZPM
Bat exposure cases hit record highs in Pima County. The Pima County Health Department expects to exceed 160 bat exposure cases in July alone, a record for the summer, according to KOLD. Health officials urge residents not to handle bats and to report contact promptly because of rabies risk.
Tucson Fire logged nearly 50,000 calls in the first half of 2026. The department responded to close to 50,000 incidents between January and June, KGUN 9 reports, and is adjusting staffing and response models to keep pace with demand.
🏛️ Government
Pima County supervisors condemn ICE arrest of Tucson mother outside courthouse. The Board of Supervisors voted to condemn the arrest of a longtime Tucson resident — identified by the Arizona Daily Star as Ana, a Mexican national who has lived in the U.S. since age 4 and has three U.S.-citizen children — by immigration agents after she left a hearing at a Pima County courthouse. Supervisors said public safety depends on residents being able to access county services without fear of detention.
Arizona Daily Star, Arizona Daily Star
City reports $174M in bond sales for capital projects. The City of Tucson said in a release it completed two offerings — $71.4 million in Water System Revenue Obligations on July 7 and $102.65 million in general obligation bonds on July 14 — that together generated more than $194 million in proceeds. The city said investor demand produced favorable borrowing costs for infrastructure work.
New ballot drop-off option proved popular in Pima County primary. More than 6,000 Pima County voters used a new optional procedure allowing them to show identification when dropping off a mail ballot, speeding up processing, according to Votebeat reporting published by Arizona Luminaria and Arizona Mirror. Election officials say wider use could lead to faster results in November.
Arizona Luminaria, Arizona Mirror
🎓 Education
U of A pulls recognition of fraternity, expands hazing prevention. The University of Arizona has removed recognition of a fraternity over hazing allegations, AZPM reports. The university separately announced July 29 that it is expanding campuswide hazing prevention initiatives, saying in a release the effort reflects its commitment to student safety and accountability.
AZPM, University of Arizona News
Back-to-school season begins across the region. TUSD campuses open in about a week, and teachers are setting up classrooms ahead of the first day, KGUN 9 reports. Tanque Verde Unified returned to session Wednesday with an expanded school garden program and steady enrollment, according to KOLD.
🏗️ Development & Business
Pascua Yaqui casino on west side nears completion. The Pascua Yaqui Tribe is set to open its new casino on Tucson's west side in November, the Arizona Daily Star reports.
City signs fiber agreement with Wyyerd Fiber. Mayor and Council approved a Fiber to the Premises program license and right-of-way use agreement with Wyyerd Fiber at their July 21 regular meeting, the city said in a release, describing a buildout backed by more than $200 million in private investment. The city and company said the network will offer 8-gig service in local neighborhoods.
Sun Tran route changes take effect Aug. 16. Sun Tran, Sun Express and Sun Shuttle will implement service and route changes beginning Sunday, Aug. 16, the transit agency said, and is encouraging riders to check schedules before that date.
🎉 Community & Events
Mutual aid group Community on Wheels is shutting down. The Tucson activist group is closing after six years of distributing supplies and services to unhoused and low-income residents, KGUN 9 reports.
📢 What Your Officials Are Saying
Sen. Mark Kelly (D-Ariz., officeholder). Kelly said in a release he and colleagues are demanding the Trump administration restore funding for what they describe as illegally canceled energy projects.
Sen. Mark Kelly (D-Ariz., officeholder). In a separate release, Kelly announced bipartisan legislation he says would support Ukrainian defense.
Sen. Ruben Gallego (D-Ariz., officeholder). Gallego posted remarks thanking UnidosUS and urging Latino voters to organize and register, writing that "there's no national coalition, no vibrant democracy, without Latinos."
Andy Biggs (R, candidate for governor). Biggs' campaign announced he has selected state Sen. Sine Kerr as the GOP nominee for lieutenant governor. Gov. Katie Hobbs' campaign posted nothing in the past 48 hours; separately, KOLD and Arizona Mirror report Hobbs has declined to debate Biggs before the November election.
CD6: Neither JoAnna Mendoza (D) nor Rep. Juan Ciscomani (R) posted campaign releases in the past 48 hours.