Record-breaking Heat Dome to Impact Western U.S. with Triple-digit Temperatures
Record-breaking Heat Dome to Impact Western U.S. with Triple-digit Temperatures
US · Published Mar 17, 2026
• A record-breaking heat dome will bring triple-digit temperatures to the Western U.S. in March.
• Cities like Phoenix, Las Vegas, and Los Angeles could break all-time March heat records.
• The early-season heat will accelerate snowmelt, worsening drought and raising wildfire risks.
Unprecedented March heat wave forecast for Western US
A significant heat dome is forecast to envelop the Western United States, bringing unprecedented March temperatures to several cities.
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