Spring weather fans in parts of the Midwest and Northeast are in for another treat as a surge of warmth arrives later this week, with temperatures running 15-25 degrees Fahrenheit above historical averages and climbing to their highest levels in some areas since October.
"The pattern from late this week into the weekend will give tens of millions of people in parts of the Midwest and Northeast a serious case of spring fever," AccuWeather senior meteorologist Matt Benz said.
Summerlike heat has already arrived far ahead of schedule in parts of the south-central United States. On Feb. 26, temperatures soared to 106 degrees in southern Texas, setting a new U.S. high-temperature mark for the three-month period of December, January and February.
These are actual high temperatures (F) from Feb. 26, 2026. (AccuWeather)
Aside from a few stretches of springlike weather in the Southeast, noteworthy warmth north of Interstate 64 has been limited to only a handful of days since midautumn.
