Las Vegas will bake under intensifying September heat this week before late-week storms bring a dramatic weather shift to southern Nevada. Drivers, especially along I-15 and U.S. 95, should prepare for blazing road temperatures through midweek followed by slick conditions Friday.
According to the National Weather Service in Las Vegas, highs will climb from 96 degrees Monday to near 99 degrees by Wednesday. Nighttime lows remain warm, hovering in the mid-70s, which could strain cooling systems and increase health risks for vulnerable residents.
Air conditioners will work overtime, and utility crews urge conservation during peak hours to prevent strain on the grid. Public health officials warn against extended outdoor activity in direct sun, especially during afternoon hours. Cooling centers remain open across Clark County.
Monday stays sunny with highs near 96 degrees and calm winds. By Tuesday, the city warms further, topping out around 97 degrees. Wednesday will be the hottest day, reaching 99 degrees before a shift in the weather pattern brings clouds late Wednesday night.
Thunderstorms move in Thursday evening and Friday, threatening heavy downpours and localized flooding. Commuters should watch for sudden delays along key arteries including I-15, U.S. 95, and the 215 Beltway. Outdoor events and flights could also face disruptions late in the week.
Conditions ease into the weekend with highs dropping to the upper 80s by Saturday. Forecasters say more fall-like air arrives with lingering showers through the weekend.
Five-Day Forecast for Las Vegas, Nevada
- Monday: Sunny, high near 96, low 74.
- Tuesday: Sunny, high 97, low 76.
- Wednesday: Sunny, high 99, low 77.
- Thursday: Mostly sunny, storms late, high 96, low 76.
- Friday: Showers and thunderstorms, high 88, low 74.
- Saturday: Partly sunny, showers possible, high 88.
