Phoenix is trading in the winter chill for a nearly perfect patio day on Saturday, January 31, 2026. Clear skies greeted the Valley this morning, with Phoenix Sky Harbor reporting about 55°F at sunrise and calm, comfortable conditions. By this afternoon, the high is expected to reach near 79°F with light east-northeast winds.
Afternoon Sunshine And Warmup
Afternoon highs will keep climbing, with temperatures headed for the upper 70s today and the low 80s on Sunday, February 1, 2026. Sunday’s high near 82°F comes within just one degree of the February 1 record of 83°F. According to the National Weather Service, a broad ridge of high pressure will sit over the region through midweek, locking in the dry and sunny stretch.
What To Expect This Week
Looking ahead, Monday is forecast to top out near 78°F, followed by around 81°F on Tuesday and about 83°F on Wednesday. Overnight lows will generally settle in the low-to-mid 50s, so you may still want a light layer once the sun goes down. Winds across the valley should stay mostly light at 0–5 mph, with mornings and higher terrain turning a bit breezier at times. Rain chances are essentially zero, so outdoor plans are good to go as long as you prepare for warm afternoons and cooler nights.
Fire Weather And Winds
Afternoon relative humidity is expected to drop into the 10–20% range, with overnight humidity recoveries around 30–55%. That combination keeps fuels dry and means yard debris can ignite more easily than you might expect. Breezy ridgetop winds are most likely this weekend, and the forecast discussion notes more widespread breeziness later next week. Before doing any burning or planning long stretches of outdoor work, check the NWS graphical forecast for timing.
Bottom line: bright afternoons, mild evenings and no rain-related travel issues through early February. Just be cautious with open flames and keep water handy for both people and pets if you are spending extended time outside in the dry, warm air.
