Some Henderson neighborhoods received some rain Monday. The rest of the valley is hoping to join them today.
There is a 30 percent chance of afternoon thunderstorms in Las Vegas, said Andy Gorelow, a meteorologist at the National Weather Service office in Las Vegas.
He said a low-pressure system off the California coast is pushing inland, creating stronger chances of rain today and ultimately a significant drop in temperatures.
Thursday’s forecast high is 109, several degrees above normal, but by next week, daytime highs will be in the mid-to-upper 90s, Gorelow said. The forecast high for Monday, the last day of August, is 98 degrees. In contrast, on the first day of August, Las Vegas saw 115, its hottest day of the year.
On Wednesday, Harry Reid International Airport reached 110, breaking the daily record of 109 set in 2001.
Southern Nevada is under an extreme heat warning until 8 p.m. Friday.
Where’s the monsoon season?
The monsoon season, which began in late June and lasts through September, has been almost nonexistent for the valley during a very dry year.
The airport has recorded 0.18 inches of rain this month, its wettest month since February (0.35). But the August average is 0.32. Reid has registered 0.69 inches of precipitation so far in 2026. The average through mid-August is 2.64. In 2025, the airport had seen 2.05 inches through mid-August.
Reid saw no measurable rain in July, although it recorded a trace July 19. On June 23, the airport recorded 0.02 inches of rain, breaking a rainless streak of 124 days. It was the only rainfall of the month.
Contact Mark Davis at mdavis@reviewjournal.com.
