Las Vegas is forecast to see mostly sunny skies Wednesday before cooler weather and shower chances arrive over Halloween weekend. Temperatures are expected to rise to about 79 degrees under mostly sunny skies.
Mostly Sunny Today Before Weekend Shower Chances
Wednesday night is expected to be partly cloudy, with a low around 59 degrees. Thursday should remain mild and mostly pleasant, with partly sunny skies and a high near 77. A slight chance of showers is forecast Friday night.
Friday And Halloween Weekend Turn Cooler
Friday's forecast calls for a high near 75 and a slight chance of showers Friday night. Saturday is expected to be partly sunny, with a high near 72 and a chance of showers at night. A chance of showers is also possible on Halloween night.
A Historical Flash-Flood Event in the Valley
The cited study identifies the upper portion of Flamingo Wash as the location of a past flash-flood thunderstorm, not as a list of areas vulnerable during this weekend's forecast. According to FEMA's Clark County, Nevada Flood Insurance Study, a storm on August 10, 1983, caused flooding in the Las Vegas Valley; its maximum storm depth was estimated at 4 inches over three hours. That historical event does not establish flood conditions for this weekend.
Flood-Control History And Safety
Nevada authorized flood-control districts in 1985, and Clark County voters approved dedicated funding for the regional district in 1986, according to the Clark County Regional Flood Control District.
For safety around floodwater, the Clark County Fire Department advises people never to drive through it, warning that fast-moving water can sweep cars away.
Sunday Shower Chances And Gusty Winds
Sunday is forecast to bring a chance of showers and a high in the upper 60s. Gusty northerly winds and below-normal temperatures are expected early next week.
Wednesday and Thursday look like the better days for outdoor plans in Las Vegas. Showers are possible over the weekend, so people planning Saturday night gatherings may want to keep their plans flexible.
