Utah Weather Forecast

Outlook

Isolated showers will remain possible this Halloween evening, especially for those around I-15. While you won't need the rain gear on all evening, you'll want to have it handy in case a shower passes through while you're out! Later tonight, the main storm will move in, bringing valley rain and mountain snow (above 9k feet initially) state wide. Valley rain will come in waves through Monday morning with snow levels gradually coming down to 7000'. Rainfall totals across northern and southwestern Utah look to range between .75" - 1.50". The Uinta Basin, central valleys, and areas near Price, Green River and Lake Powell: .50"-1.25". Eastern border including Monitcello, Blanding and mountains: 1" - 3". Flash flooding is a big concern on Sunday for southwest and southeast Utah. If you're in an area that was flooded from the last storm, please prepare and have a safety/evacuation plan. Mountain snow accumulations: Upper Cottonwoods 8"-16". Northern Mountains above 8000' could see 3-6" while the central and southern mountains see up to a foot (higher possible in the Tushars and near Brian Head). - Devan Masciulli, KSL Weather 10.31.26