Sunday in Phoenix is serving up a classic winter tease on February 15, 2026: a cool, mostly clear start in the mid-50s at Sky Harbor, followed by an afternoon that feels more like spring. Highs are set to climb to around 78°F under mostly sunny skies, with light southeast winds making it prime time for errands, patio lunches, or a quick hike before the workweek kicks in.
Afternoon Winds Pick Up
The calm morning will not last all day. Light breezes are expected to build into the afternoon, with occasional gusts in the 15–20 mph range, especially near higher terrain and across the western Valley. Relative humidity will stay low, so the air will feel dry even as temperatures rise. If you are planning longer outdoor activities, it is a good idea to keep water handy.
Monday Night Showers And Stronger Gusts
A stronger Pacific system moves in Monday, February 16, 2026 into Tuesday, February 17, 2026, and that is when the weather takes a turn. The best shot at showers arrives after 5 p.m. Monday and continues through the overnight hours. The National Weather Service Phoenix expects the highest rain chances Monday night, with localized gusts between 25–40 mph and generally light rain totals across the Valley, keeping most spots under a quarter inch. Higher amounts remain possible northeast of Phoenix.
What To Do This Week
Before the wind and rain arrive Monday evening, it is worth taking a few minutes to secure loose patio furniture or backyard decor so it does not go flying. If you plan to travel overnight into Tuesday, February 17, 2026, allow extra time on the road; fast-moving showers can cut visibility and gusty winds can make highway driving a bit of an adventure. For background and our earlier weekend forecast, see our weekend sun preview.
