Heat wave to continue in Southern California as record-threatening highs expected

By CNN
August 1, 2026 | 1:05 PM

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LOS ANGELES (KCAL, KCBS) — Southern California remains under several heat-related advisories, including an Extreme Heat Warning from the National Weather Service, as August kicked off with a widespread heat wave on Saturday.

The NWS’s warning extends throughout the region until 8 p.m. Sunday. It projects temperatures between 95 and 110 degrees for virtually all of Southern California, except for communities within 10-to-15 miles of the coast.

Due to extreme temperatures, CBS LA has issued a Next Weather Alert through Tuesday as inland heat continues.

The NWS said some record highs could be threatened on Saturday.

“Surprisingly no records were set yesterday,” a bulletin reads. “However, we get another chance for that today.”

Forecasted highs include:

91 degrees in downtown Los Angeles
98 in Burbank
109 in Woodland Hills
96 in Simi Valley
104 in Santa Clarita
83 in Culver City
95 in Anaheim
107 in San Bernardino
102 in Riverside
99 in Temecula
116 in Palm Springs

Forecasters advise residents to limit outdoor activity during the day over the weekend due to the extreme heat.

Thousands are expected to flock to the beach to escape the heat, but the NWS warns that high surf and increased chances of rip currents remain on Saturday, so beachgoers should exercise caution when approaching the water.

“Dangerous surf and rip currents are expected at many of the beaches this weekend, as a result of swells from a tropical cyclone located west of Mexico,” the NWS said.

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U.S. probes if Iran was behind cyberattack on utilities in Michigan, Minnesota

August 1, 2026 | 2:49 PM

▶ Watch Video: Trump blames Minnesota cyber attacks on its governor, not Iran Malicious cyber activity affected technology at water systems in at least seven states this week, including Minnesota and Michigan, forcing some utilities to switch to manual operations as state and federal authorities dig into who is behind the attack, CBS News has learned.Investigators are probing to determine whether the activity is the work of Iranian hackers, according to U.S. officials and sources familiar with the incident. Sources cautioned that since they had not definitively attributed the attack, their assessment could change as additional technical evidence is collected. They are also probing whether the actor could have attempted to appear Iran-based as a way of stirring the pot amid the ongoing U.S. conflict with Iran. The FBI reported incidents in "at least seven states" but didn't identify them. On Saturday, Michigan joined Minnesota in reporting cyberattacks on the state's water systems but an official said all systems were operating "safely."Dale George, the director of communications at the state's Department of Environment, Great Lakes, and Energy, told CBS News in a statement that the state received "a small number of reports from Michigan communities indicating activity consistent with what federal agencies described.""All systems continued to operate safely, issues were addressed by local operators, and there are no known impacts that posed a public health concern," he added.CBS News has learned more than 30 community water systems across Minnesota were affected. Minnesota and the federal government have not publicly attributed the activity to a particular actor.Even as the investigation continues, President Trump said Friday he doesn't think Iran is to blame. Instead, he pointed the finger at Minnesota and its Democratic governor, Tim Walz, who is no stranger to criticism from the president."I think that Minnesota is behind it," Mr. Trump said during a televised Cabinet meeting at Camp David. "You know who's behind it? Minnesota. Because they're grossly incompetent. I think the governor's behind it. I don't think there was an Iranian cyberattack. I think that Minnesota ought to get its act together." "They like to say, 'Oh, it was Iran.' Iran should be so lucky. Iran's got bigger problems than worrying about Minnesota," the president said.Following Mr. Trump's accusations, Walz said on social media that the Trump administration "took an axe" to the federal Cybersecurity and Infrastructure Security Agency and "left the U.S. exposed to cyber attacks.""Trump knows exactly who is responsible for this attack, and knows that other states were hit too," Walz, who was the vice presidential candidate on the ticket facing Mr. Trump in 2024, said. "This is what modern warfare looks like, and it further illustrates there's no plan to win a war with Iran."Iran-linked hackers have previously targeted U.S. water utilities. Federal agencies confirmed previously that actors affiliated with Iran's Islamic Revolutionary Guard Corps used a similar playbook, accessing multiple water and wastewater facilities in 2023 by exploiting internet-connected controllers that retained their default passwords.Officials warned of water systems being targetedThe FBI, Environmental Protection Agency and CISA all warned Thursday that attackers are targeting internet-exposed industrial controllers used by water and wastewater utilities. In at least some cases, federal authorities reported loss of monitoring and control functionality at critical infrastructure sites, leading to pressure loss and flooding.Most confirmed cases in the Minnesota cyberattack involved technology used to remotely monitor and control water system equipment, including devices called programmable logic controllers, according to Minnesota IT Services.None of Minnesota's water supply has been reported compromised as a result of the attack, Mike Ernster, a public information officer for the Minnesota Department of Public Safety, told CBS News. The Bureau of Criminal Apprehension's Minnesota Fusion Center was working with municipalities, as well as state and federal partners, to address the issue, he added.A water tower is seen in Plymouth, Minnesota, on July 30, 2026. A cyberattack targeted the operating technology at over 30 water systems in the state, including Plymouth's, earlier this week, state officials said. AP Photo/Ellen Schmidt

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