The Las Vegas Valley could see highs below 100 degrees by midweek, according to the National Weather Service.
A 20 percent chance for showers and thunderstorms through the week will bring the expected cooler temperatures. Rainfall will be concentrated over the Spring Mountains on Sunday, but chances for rain on Monday and Tuesday “hold some promise to be a little more active here in the valley,” meteorologist Chris Outler said.
A flash flood warning was issued for San Bernardino county in California at the Nevada border at about 3:30 p.m. Sunday, according to a tweet from the weather service’s Las Vegas office. A severe thunderstorm warning was issued at about 3:15 p.m. for Lake Mohave, with winds expected to top 60 mph.
Sunday’s high is 109, followed by highs of 107 and 104 on Monday and Tuesday, respectively. The high will drop to 99 on Wednesday and Thursday, the weather service said.
The valley will see partly cloudy to mostly cloudy skies through the week.