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(KTXL) — With an Excessive Heat Warning in place through Saturday, some records were broken Friday with highs in the triple digits.

San Joaquin Valley Air expects the air quality to deteriorate over the weekend in parts of the valley as temperatures remain high. 

Residents should remain indoors if possible, and avoid exposure to the ozone and particulate matter.

High-temperature records in Sacramento and Stockton were broken on Thursday. Sacramento recorded 110 degrees Thursday, surpassing the 1976 high of 102. Stockton hit 106, just barely beating out 2017’s record of 105.

Modesto tied its record-high temperature of 103 from 2012.

Records were again broken on Friday. Sacramento recorded 110 degrees, 4 degrees higher than the 2017 record. Modesto was a degree hotter than the 2017 record of 106. This time, Stockton was the city that tied its, recording the same temperature as 2017: 108 degrees.

The California ISO issued a Flex Alert beginning Thursday evening, urging people to conserve electricity at peak evening hours. By Thursday afternoon, the Flex Alert had been extended through Friday.

The National Weather Service has placed most of our region in a High Heat Risk category, meaning there is a high risk for most of the population.

Officials recommend limiting strenuous outdoor activity, staying hydrated and watching for signs of heat exhaustion and heat stroke.


  • Faintness or dizziness
  • Excessive sweating
  • Cool, pale and clammy skin
  • Rapid and weak pulse
  • Muscle cramps

If you start experiencing these symptoms, experts say to drink lots of water and find an air-conditioned place to relax.


  • Throbbing headache
  • No sweating
  • Red, hot and dry skin
  • Nausea or vomiting
  • Rapid and strong pulse
  • Possible loss of consciousness

These symptoms mean you should seek medical attention, as heat stroke can be very dangerous.

Those who do not have access to air conditioning can go to a local cooling center. Click or tap on the following buttons for cooling centers in your county.