Phoenix, AZ – A significant shift toward colder, wetter weather is expected across Arizona beginning Tuesday as a new low-pressure system enters the region. According to the National Weather Service (NWS) in Phoenix, the storm will progress slowly across the state from Tuesday into Wednesday, bringing a notable drop in temperatures, periods of rain in the deserts, and accumulating snow in the high terrain.
Temperatures are forecast to fall well below seasonal averages by midweek. NWS forecasters say the lower deserts, including the Phoenix metro, will see highs in the 60s and overnight lows in the 40s and 50s, a sharp cooldown from recent warm conditions. Across higher elevations, daytime highs will dip into the 50s, with a few areas approaching freezing overnight.
Multiple rounds of scattered showers are likely across the deserts, while snow levels are expected to fall to around 6,000 feet between Tuesday night and Wednesday morning. This could lead to light to moderate snowfall in areas such as Flagstaff, Payson, Prescott, and the Mogollon Rim, with travel impacts possible on elevated roadways.
Breezy conditions will accompany the system, especially across central and western Arizona, potentially reducing visibility during heavier showers or snow bursts. The NWS advises residents to prepare for sharp temperature changes and monitor local forecasts for updates on precipitation timing.
This system marks the next in a series of early-season disturbances affecting the Southwest, signaling a notable change toward cooler, more unsettled weather as the region heads deeper into November.
