Arizona – A cool desert morning greets the Valley as MLK Day gets underway, with clear skies and crisp air settling across Phoenix before sunrise. Streetlights glow against calm conditions, and light jackets feel just right early, even by local standards.
According to the National Weather Service in Phoenix, temperatures start the day in the mid-50s before warming quickly. Sunshine dominates, pushing afternoon highs into the mid-70s. Winds remain light, keeping travel smooth across I-10, Loop 101, and surface streets throughout the metro.
The dry pattern holds steady tonight. Clear skies allow temperatures to fall back into the upper 40s, setting up another cool start Tuesday morning. By late morning, warmth returns fast. Tuesday afternoon highs reach the mid-70s again, with nearly identical conditions expected Wednesday.
Midweek brings subtle changes. Highs ease slightly into the low 70s Wednesday and Thursday as a few clouds drift overhead. Even so, afternoons stay comfortable, and evenings cool quickly after sunset. Outdoor plans remain favorable, with no rain expected through at least Thursday.
By Friday, clouds increase a bit more, and temperatures dip closer to 70 degrees. A small chance of showers appears late Friday night into Saturday, though most of the Valley stays dry. Any rainfall looks light and scattered, with minimal travel impact expected.
Looking beyond the workweek, long-range outlooks continue to favor above-normal temperatures across the Southwest, while colder air stays focused well east of Arizona. For now, Phoenix enjoys a calm and seasonably warm January stretch.
Heading out early today? Expect a cool start and a warm finish. How big was the temperature swing in your neighborhood this morning?
Five-Day Weather Outlook for Phoenix, AZ
• Today (MLK Day): Sunny, high near 74°F
• Tuesday: Sunny, high near 74°F
• Wednesday: Mostly sunny, high near 73°F
• Thursday: Partly sunny, high near 72°F
• Friday: Partly sunny, high near 69°F
