National Weather Service United States Department of Commerce
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Last Map Update: Mon, Mar 16, 2026 at 5:52:32 am MDT

As a historically strong upper-level high (for March) sets up over the Desert SW, temperatures climb to record levels by the end of the week. New monthly record highs are forecast to be set.
A breezy cool front moves west through the area tonight and Monday morning, bringing in noticeably cooler temperatures from the recent past. The front will turn winds to east/northeast at 10 to 20 mph in the early morning, before diminishing in the afternoon. High temperatures in the east will be some 15 to 20 degrees cooler than Sunday, while warmer temperatures out west will end up only about 5 degrees cooler than Sunday. Don't get to used to these mild temperatures; by Tuesday and Wednesday highs will be back well above normal, and by Thursday and Friday temperatures will be back to near-record levels.
A summer-like weather pattern develops this week across the Desert Southwest.
Stay cool and hydrated during this early-season heat wave.

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