The Desert Southwest will experience a tranquil weather pattern throughout the week, with unseasonably warm and dry conditions prevailing. High temperatures in the Phoenix metro area are forecast to reach 78-82°F, around 5-10°F above the seasonal norm of 69°F. Overnight lows will remain mild, and no rain is expected.
Monday is anticipated to be the warmest day of the week, with Phoenix potentially tying or breaking the 81°F record high on Tuesday, as there’s a 40-50% chance of this happening. A slight dip in temperatures midweek will be short-lived, with highs rebounding by the weekend.
This extended warmth reflects a strong high-pressure ridge, with the Climate Prediction Center favoring above-average temperatures into mid-December.