PHOENIX -- A low pressure system tracking into Arizona from the northwest is expected to drop daytime highs in the Valley 10 to 15 degrees heading into Tuesday.
The storm system Monday afternoon was located near Nevada. Before 4 p.m., rain showers were seen on Doppler 360 falling in Northwest Arizona. As cooler air filters in Monday night and Tuesday morning, a light wintry mix of rain and snow is expected in the high country. Snow levels Monday night should range from 7000 to 8000 feet. By Tuesday, snow levels should range from 7000 to 6000 feet.
Gusty winds ahead of the system’s associated cold front are expected to weaken Monday night in the Valley. Until then, patchy dust is possible as wind gusts are expected to peak around 25 miles per hour. In the mountains, the gusty winds will last through Tuesday. A Wind Advisory is in effect for Northern Arizona until 8 p.m. Monday for sustained winds of up to 45 miles per hour with peak gusts of around 55 miles per hour.
Tuesday morning’s low temperatures in the Valley should dip to the 50s. Phoenix should see a low of 57. Tuesday afternoon, highs won’t escape the low 70s across the Valley, with Phoenix topping out at 73. The mountains will see afternoon high temperatures only reaching the 40s and 50s. The unseasonably cool weather will continue through Thursday before high pressure starts to build back in for the weekend.