Phoenix, AZ Weather
Today's Forecast
Partly cloudy, with a low around 90. East southeast wind 0 to 5 mph.
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Data from the National Weather Service
Last updated Sat, Aug 22, 10:46 PM UTC
Active alerts for Phoenix
- Air Quality Alert
Maricopa, AZ
Relayed from the National Weather Service. See every active warning. For anything affecting your safety, use weather.gov.
Winter in Phoenix
Phoenix sees essentially no snow in an average year, according to NOAA’s 1991–2020 climate normals — a essentially snowless place. Measurable snow is close to unheard of. On the rare occasion it falls, everything stops.
That is why local snowfall thresholds differ so much from one town to the next: a district that plans for 0 inches a year is equipped differently from one that never sees any. Here, roughly 0.5 inches in a single storm is where a normal school day comes under threat.
Upper air over Phoenix
The nearest radiosonde launch is Phoenix, about 0 miles away. A weather balloon goes up twice a day and measures temperature, humidity and wind all the way through the atmosphere — which is what forecasters actually read to judge whether storms will fire, and how a surface forecast was arrived at.