Triple-digit heat is headed to Sacramento. When will highest temps hit?
Brace yourselves, Sacramento residents.
Scorching hot temperatures are on the way to the Sacramento Valley, according to the National Weather Service.
The National Weather Service has issued an excessive heat watch for the area.
Sacramento-area residents can expect dangerously hot conditions with temperatures ranging from 99 to 109 degrees and widespread major heat risks, the weather agency said on X.
Here’s what’s in store for Sacramento:
When will excessive heat watch be in effect?
The excessive heat watch will be in effect from 11 a.m. Friday, May 30, through 11 p.m. Saturday, May 31, according to the National Weather Service.
Which areas can expect dangerously hot conditions?
According to the weather agency, affected communities include Sacramento, as well as Chico, Grass Valley, Modesto, Oroville, Red Bluff, Redding, Stockton and Yuba City.
“Heat-related illnesses increase significantly during extreme heat events, particularly for those working or participating in outdoor activities,” the weather agency said.
How high will temperatures get?
Much of the Sacramento Valley and northeastern Sierra Nevada foothills are expected to face elevated heat risks from Friday through Saturday, the weather service said, with daytime high temperatures possibly exceeding 100 degrees.
In Sacramento, Friday is shaping up to be the hottest day, with an 80% chance of triple-digit temperatures, according to the National Weather Service.
The weather is expected to stay warm overnight, with low temperatures ranging between the mid-60s and mid-70s.
What’s in the weather forecast for Sacramento?
On Tuesday, Sacramento residents can expect clear, sunny skies and a high temperature of 90 degrees, according to the National Weather Service’s latest seven-day weather forecast.
The overnight low temperature will be 56 degrees.
Winds could range from 3 to 8 mph.
The high on Wednesday will be near 89, while the low will be approximately 56. Winds of 5 to 11 mph are expected, with gusts as high as 21 mph.
Thursday will see a high near 95 and a low around 62. Winds could reach up to 5 mph.
Friday’s forecast calls for a high near 104 and a low around 67.
On Saturday, the high will be approximately 102, with a low around 61.
Sunday will see a high of 88 and a low of 57.
What does heat risk mean?
Starting Friday, Sacramento’s heat risk will be major, the weather service said.
The heat risk scale provides a forecast that shows the likelihood of heat-related problems occurring.
The scale calculates how hot it is compared to normal, how long the heat lasts, and whether it’s likely to cause health issues based on data from the U.S. Centers for Disease Control and Prevention.
It ranges from 0, meaning there’s little or no heat risk, to 4, indicating an extreme heat risk.
The heat risk is projected to be 3 on Friday, indicating a major heat risk.
According to the weather service, major heat risk “affects anyone without effective cooling and/or adequate hydration.”
Sacramento will see moderate heat risk on Saturday, the weather service said.
Moderate heat risk “affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration,” the agency said.
Who’s most at risk in Sacramento?
Vulnerable individuals include those who are pregnant, newborns, children, older adults and those with a chronic illness. These groups are more at risk due to age and conditions that make it difficult to regulate high temperatures.
“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the weather service said in its extreme heat watch.
“Do not leave young children and pets in unattended vehicles,” the weather service warned. “Car interiors will reach lethal temperatures in a matter of minutes.”
This story was originally published May 27, 2025 at 12:25 PM.
