Salt Lake City hit a milestone this month no one was hoping to celebrate: a record-breaking 109-degree day. Now, weeks later, Utah is bracing for another round of triple-digit temps as extreme heat settles over the state for a third straight weekend.

The sweltering weather is thanks to a high-pressure system that’s been trapping heat and baking much of the southwest this July, said Julie Cunningham, a meteorologist with the National Weather Service’s Salt Lake City office.

“Even if we’re not seeing record-breaking temperatures, it’s definitely still going to be really hot,” Cunningham said, warning of a higher risk of heat-related illnesses this weekend.

July is typically Utah’s hottest month, but this stretch is running slightly hotter than normal. Temperatures are expected to climb about 10 degrees above average, while typical July highs sit in the mid-90s, Cunningham said.

On Saturday, Salt Lake City is forecast to reach around 103 degrees, but the heat will be even more intense farther south.

St. George could hit 111 on Sunday, while other parts of southern Utah — including near Zion National Park, Lake Powell, Glen Canyon, Canyonlands and Moab — are under an extreme heat warning from noon Friday through late Sunday. Those areas are expected to reach an average of 107.

The heat hasn’t been letting up after sunset, either.

Salt Lake City had four consecutive nights this week without its usual cooldown, Cunningham said, including a record-warm low of 78 degrees Tuesday. On Monday, it was still 86 degrees at 6 a.m. at Salt Lake City International Airport.

But relief is on the horizon, Cunningham said.

Forecasters expect temperatures to dip late Sunday into Monday before heat builds again later next week.

Then, around Aug. 9, she said monsoon moisture could move into the region, bringing increased clouds and storms that may help ease daytime highs.