National Weather Service United States Department of Commerce

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Click a location below for detailed forecast.

Last Map Update: Tue, Mar 17, 2026 at 8:42:38 am MST

An Extreme Heat Warning has been issued Wednesday-Sunday for locations below 4000 feet in the Grand Canyon and Yavapai County. Do not be caught off guard by June-like temperatures in March!
Much of the area will roast under a summer-like ridge, with temperatures reaching 20 to 30 degrees above normal from Tuesday onward. Take the appropriate precautions if you are planning on any outdoor activity through this week.

 

Text Product Selector (Selected product opens in current window)