Unseasonably High Temperatures Sweep Across the Southwest and Midwest

Sat Mar 21 2026 22:23:24 GMT+0000 (Coordinated Universal Time)

Record-setting heat waves are affecting parts of California and Arizona, with temperatures spiking to 100 degrees Fahrenheit as early as the first week of spring, raising concerns about climate impacts and safety.

This March, parts of California and Arizona experience unprecedented heat, with temperatures soaring above 100°F. Forecasters predict hotter months ahead, raising alarms as environmental experts correlate this extreme weather to climate change. Hikers face challenges with dwindling water sources as authorities warn of wildfire risks in other areas.

Parts of California and Arizona are facing extreme heat warnings as unusually summer-like weather extends even into states like Nebraska, just as spring begins. Forecasts predict temperatures reaching or exceeding 100 degrees Fahrenheit (37.7 C) in the Southwest, marking a dramatic week of record-breaking heat. Experts anticipate that April, May, and June will bring above-normal temperatures across much of the U.S.

Hiker Win Marsh shared her decision to cut short a planned trek through Arizona due to the oppressive heat. Marsh, 63, and her husband had aimed for an extensive 800-mile hike on the Arizona Trail but found conditions increasingly dangerous. We promised our kids we wouldn’t do sketchy stuff. We’re not out there for a search-and-rescue event, she said.

The National Weather Service confirmed predictions of 100 degrees in Tucson, Arizona, and temperatures in the Yuma Desert reached a staggering 112°F (43.3 C) on Friday, breaking records for March in the U.S.

Similarly, temperatures are expected to exceed 90°F in the Midwest, including Nebraska, with a notable drop anticipated as cold fronts move in. Meanwhile, a red flag warning for parts of Texas signals an elevated risk of wildfires. This month’s extraordinary heat has been attributed significantly to climate change, as noted by World Weather Attribution, a scientific group studying extreme weather phenomena.