San Francisco sizzles as March heat wave strangles the West — PHOTOS
Published on March 18, 2026.
A rare March heat wave is causing San Francisco to reach nearly 90 degrees, setting records across the West. The city is experiencing its hottest March in at least two decades. While the Bay Area is expected to see nearly 90 degree highs, Phoenix and Las Vegas could also see their earliest triple-digit temperatures. Extreme heat warnings have been issued for areas in Arizona, including Grand Canyon National Park from Grand Canyon to Grand Canyon in southern New Mexico. President Donald Trump has delayed his China trip until next month to focus on the Iran war. High temperatures are expected to range from 96 to 104 in the lower elevations of the Lower Canyon.
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