Record heat spreads east as over 200 record highs are forecast across the U.S.
Record heat is forecast to persist across parts of the western and central United States through March 25, 2026, with the National Weather Service warning that more than 200 daily record highs could be set as above-normal temperatures spread from the West back into the central and southern Plains. A brief cooldown over parts of the central and eastern U.S. on March 23 is expected to be short-lived. The Storm Prediction Center has issued a severe thunderstorm outlook for Thursday, March 26, covering areas from northeast Missouri to western and northern Ohio.
GFS 850 hPa Temperature Anomaly valid at 12:00 UTC on Monday, March 23, 2026. Credit: Tropical Tidbits
A persistent upper-level ridge remains in place over much of the western United States, supporting anomalously high temperatures across California, the Southwest, and the central Great Basin. Under this pattern, sinking air and generally clear skies are allowing temperatures to remain well above seasonal averages.
A temporary moderation in temperatures is underway across parts of the central and eastern United States on Monday as a weak cold front moves through the region. This brief cooldown is expected to be short-lived, with forecast guidance indicating a rapid return of above-normal temperatures beginning Tuesday and continuing into midweek.
Forecast guidance from the National Weather Service (NWS) indicates that the heat will not remain confined to the western regions. Instead, it is expected to expand eastward and reestablish across the central and southern Plains through midweek, increasing the geographic footprint of the event.
NWS says more than 200 daily record highs are forecast nationwide. Potential record temperatures extend from the Southwest into parts of the central United States. Because this heat is occurring early in the season, it may pose increased stress in areas where populations have not yet acclimatized to summer-like conditions.
The central and southern Plains are forecast to see another surge of above-normal temperatures as the broader warm pattern shifts east. This will allow heat to rebuild in areas that briefly cooled behind the front.
Forecast discussions indicate that above-normal temperatures will continue spreading into the Mississippi Valley, expanding the area affected by the heat. As the ridge shifts east, record temperature potential is expected to continue in multiple regions through midweek.
A separate hazard is expected to emerge later in the week as a trough and cold front move into the central and eastern United States. The Storm Prediction Center has outlined a severe thunderstorm threat for Thursday, March 26, from northeast Missouri into western and northern Ohio, where moderate instability and strong deep-layer shear are expected to overlap.
References:
1 Short Range Public Discussion – NWS/WPC – March 23, 2026
2 Day 4-8 Convective Outlook – NWS/SPC – March 23, 2026
I’m a science journalist and researcher at The Watchers, contributing to the Epicenter edition, where I cover peer-reviewed scientific research and emerging discoveries across Earth and space sciences. With a background in astronomy and a passion for environmental science, I’ve worked in shark and coral conservation in Fiji, conducting reef and shark-behavior research, contributing to mangrove restoration, and earning PADI Open Water and Coral Reef Certifications. I bring a blend of scientific rigor and storytelling to illuminate the discoveries shaping our planet and beyond.
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