Good morning and a happy Sunday to you in sunny Phoenix! This is your weather for Sunday, May 18th, 2025. - Morning temperature starts at a pleasant 59 degrees - Daytime high of 86 degrees with very low humidity at 27% - Clear sunny skies, ideal for outdoor activities with a light west-southwest breeze at 10 mph - Evening temperatures remain warm around 86 degrees, great for outdoor dining - Nighttime temperatures dip slightly to 80 degrees with a clear, starlit sky Phoenix certainly knows how to do Sundays right, so make the most of this beautifully warm and clear day.