Las Vegas - weather

september 18, 2026

Las Vegas

...RED FLAG WARNING NOW IN EFFECT FOR STRONG WINDS AND LOW HUMIDITY FOR MUCH OF SOUTHEASTERN CALIFORNIA, SOUTHERN NEVADA, AND NORTHWESTERN ARIZONA FROM FRIDAY MORNING THROUGH SATURDAY EVENING... * TIMING...From Friday morning through Saturday evening. * WIND...Southwest winds 20 to 30 mph with gusts to 40 to 50 mph. * HUMIDITY...5 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 20:00 To 08:00