Hotter temperatures make a comeback Sunday in metro Denver, with triple-digits possible on Monday

Enjoy the cooler weather while it lasts. Temperatures in the upper 90s are expected to return along the I-25 corridor and out on the Plains on Sunday and across much of next week, with triple-digit highs possible in some locations on Monday, according to a forecast issued Saturday morning by the National Weather Service.

A persistent high-pressure system stuck over the southwest part of the country will push up temperatures in Colorado, although the state won’t come anywhere close to suffering the extreme heat that Arizona and Nevada have had to endure.

“A dangerous, long-lived, and record-breaking heat wave will continue over the Southwest this weekend, particularly in the low desert areas, with triple-digit high temperatures also extending northward into the Central Great Basin,” the National Weather Service said.

Normally monsoonal moisture coming up for the Gulf of Mexico provides relief from high temperatures in Colorado this time of year. But that pattern is stuck in the Four Corners region, where it could generate heavy rains and even flash flooding this weekend.

For Saturday, temperatures in Denver should top out at around 90 degrees, with the low coming in overnight at 63 degrees. By Sunday, the high will ramp up to 96 degrees and then reach 99 degrees on Monday in Denver, according to the forecast.

Isolated showers and thunderstorms could form Saturday afternoon and evening in the mountains and foothills, but heavy rains aren’t expected. A similar pattern should continue to play out next week.

“Even though only light rain is expected, gusty outflow winds will be possible with this activity,” the forecast said.