Temperatures in Las Vegas will cool slightly by the start of next week, but before that there’s a possibility for thunderstorms in the valley, according to the National Weather Service.
An excessive heat warning issued for the valley expired at 8 p.m. Wednesday after the high reached 108, the weather service said. The Colorado River Valley’s excessive heat warning, which covered Laughlin and Bullhead City, Arizona, also expired.
Wednesday also saw brief showers that left trace amounts of rainfall throughout the valley, and there’s a 20 percent chance for rain overnight, meteorologist John Adair said. By 9:30 p.m. a shower was forming between Henderson and Boulder City.
“There’s still a chance that another storm could rumble through tonight,” Adair said.
Rain chances will continue to sit at 20 percent on Thursday, the weather service said.
“Thursday is really the day to watch for rain,” meteorologist Chirs Outler said. “We may have some morning showers with a chance in the afternoon as well.”
Thursday is expected to reach 103 degrees, followed by a high of 104 on Friday and 103 again on Saturday.
A trend toward fall temperatures will come as early as Sunday, Outler said.
“We should finally have highs that are in the mid-90s instead of triple digits,” he said.
Sunday has an expected high of 95, and Monday is expected to reach 96, the weather service said. Overnight lows this week will be right around 80 degrees before dropping to the mid to low 70s early next week.
Last month finished as the second hottest August on record with an average temperature (the daily high and low each day) of 94.3 degrees, just 0.1 degree under the previous August at 94.4 degrees.
The average August temperature for Las Vegas is 90.6 degrees.
Summer day shelters open until Sept. 30
— Salvation Army (for adults), 35 W. Owens Ave., 8 a.m.-4 p.m.
— Catholic Charities of Southern Nevada (for men), 1511 Las Vegas Blvd. North, 7 a.m.-3 p.m.
— Shade Tree (women and children), 1 W. Owens Ave., 11 a.m.-7 p.m.
Southern Nevada cooling stations open from Aug. 20-22:
— Walnut Recreation Center: 3075 N. Walnut Road. Open from 10 a.m. to 2 p.m. Saturday and 7 a.m. to 8 p.m. Monday.
— Pearson Community Center: 1625 W. Carey Ave.. Open from 8 a.m. to 5 p.m. Saturday and 8 a.m. to 8 p.m. Monday.
— Dula Gymnasium: 441 E. Bonanza Road. Open from 9 a.m. to 9 p.m. Monday.
— Hollywood Recreation Center: 1650 S. Hollywood Blvd. Open from 9 a.m. to 5 p.m. Saturday and 6 a.m. to 8 p.m. Monday.
— Cambridge Recreation Center: 3930 Cambridge St. Open from 8a.m. to 1 p.m. Saturday and 7 a.m. to 8 p.m. Monday.
— Downtown Recreation Center in Henderson: 105 W. Basic Road. Open from 9 a.m. to 3 p.m. Saturday and 6 a.m. to 6 p.m. Monday.
— Downtown Senior Center in Henderson: 27 E. Texas Ave. Open from 9 a.m. to 3 p.m. Monday for people 50 and older.
— Heritage Park Senior Facility in Henderson: 300 S. Racetrack Road. Open from 9 a.m. to 3 p.m. Saturday and 6 a.m. to 8 p.m. Monday for people 50 and older.
— Courtyard Homeless Resource Center: 1401 Las Vegas Blvd. North. Open 24/7.
— Veterans Village: 1150 Las Vegas Blvd. South. Open 24/7
Laughlin and Mesquite cooling stations:
— American Legion: 1510 Bruce Woodbury Drive, Laughlin. Open from 8 a.m. to 8 p.m. Outside cooling area for pets on leash or in a carrier; no pets allowed inside.
— Colorado River Food Bank: 240 Laughlin Civic Drive, Laughlin. Open from 8 a.m. to 2:45 p.m.
— Salvation Army Mesquite: 355 W. Mesquite Blvd. #B-50, Mesquite. Open from 8 a.m. to 3 p.m.
Source: Clark County