The main change in Las Vegas’ forecast comes late in the week: after several warm, mostly dry days, shower chances rise from late Friday into Halloween weekend. Saturday is forecast to reach about 72 degrees, with a chance of showers; chances continue Saturday night and Sunday as highs fall to the upper 60s by Sunday afternoon. The forecast does not specify how much rain may fall.
That missing amount matters when interpreting what a chance of rain could mean locally. Clark County’s Stormwater Regulatory Program explains that rain that does not soak into paved streets, parking lots and rooftops becomes runoff and enters the storm-drain system. That describes a general drainage process, not a flood threat from this forecast; the forecast alone does not establish the amount, location or intensity of any rainfall.
Warm, mostly dry weather first
Monday is forecast to be sunny, with a high near 78 degrees after a mild start. Monday night should be mostly clear, around 57 degrees. Tuesday remains sunny with a high near 79, though east-southeast winds could gust up to 18 mph in the afternoon.
Wednesday is expected to stay mostly sunny with a high near 78, then turn cloudier overnight, with a low near 61. Thursday is forecast to be mostly cloudy and near 78, with only a minimal rain chance. Friday should be mostly sunny, around 76, before a slight shower chance arrives late at night, according to the National Weather Service forecast.
Weekend plans hinge on showers
For now, the outlook supports outdoor plans through midweek more confidently than plans for late Friday through Sunday. Shower chances are not a guarantee of rain, and the available forecast provides no basis for concluding that flooding will occur.
