Last 7 days
Today
32° / 24° High / Low (°C)
88% Humidity
35% Rain probability
Partly cloudy Condition
What this means
In Phoenix on 21 Oct 2026, rain is possible: 35% chance, up to 0.0 mm forecast (source: Open-Meteo).
Rain is possible today but not certain — 35% chance of a brief drizzle. Carrying something compact is reasonable.
Rain season
Phoenix averages just 200mm annually, making it one of the driest US cities. The North American Monsoon arrives in July, bringing spectacular but brief afternoon thunderstorms — intense, often with lightning and blowing dust (haboob) that reduces visibility to near zero. Outside of July–September, expect essentially no rain.
Elsewhere in United States