Las Vegas woke up clear and cool around 55°F this morning, but the valley is on a fast track to early-season heat. Today (Thursday, March 12) will top out near 84°F with almost no rain in sight and only modest overnight cooldown, with lows holding in the mid to upper 50s. Afternoons will feel more like late spring than mid-March, so outdoor plans may need a little adjusting.
Hotter Than Normal, Records Could Be Threatened
A strong ridge of high pressure is parking over the region and pushing temperatures well above normal, creating a Minor-to-Moderate heat risk for parts of southern Nevada, according to the National Weather Service Las Vegas. Forecasters expect readings to run about 10 to 20 degrees above typical March levels, with the warmest stretch arriving in the second half of next week. Visitors, outdoor workers and older adults who are not yet acclimated to desert heat should be especially cautious.
When The Heat Moves In
Highs climb steadily through the week. Today, Thursday, March 12, will land near 84°F. Friday, March 13, should reach about 87°F. Saturday, March 14, is expected to hit near 89°F, followed by a brief dip on Sunday. Guidance points to a stronger peak Tuesday and Wednesday (March 17 and 18), with temperatures around 93°F on March 17 and near 97°F on March 18, the hottest stretch of the year so far. Overnight lows will mostly stay in the upper 50s to mid 60s, which means limited nighttime relief from the heat.
Heat Safety And Cooling Options
Locals and visitors alike should shift strenuous work and workouts to the morning or evening, stay hydrated and keep an eye on neighbors, kids and pets during peak afternoon hours. Clark County operates daytime cooling stations and other community resources for anyone who needs an air-conditioned break; see Clark County for locations and hours. If someone shows possible heat illness symptoms such as dizziness, heavy sweating, nausea or confusion, move them into shade or air conditioning and call 911 if symptoms are severe.
What It Means For Boaters, Commuters And Events
Valley winds should stay light most days, so commutes and outdoor events will not have much wind to contend with. Boaters on Lake Mead and along the lower Colorado River Valley, however, should watch for gusty north winds and choppy daytime conditions on the water. At the airport, operations are expected to remain visual with light winds, but travelers should plan for hot, unshaded parking lots and sun-baked pavement. For non-emergency county help, including assistance finding cooling centers, residents can call 211.
