“Summer ends, and Autumn comes, and he who would have it otherwise would have high tide always and a full moon every night,” wrote Hal Borland. Autumn arrived, officially, at 3:21 a.m. Wednesday, as the sun’s direct rays fell on the Tropic of Cancer. For the record, “meteorological autumn” — marking the end of what are historically the 90 warmest days — came on Sept. 1.

The calendar says fall, but summer is still simmering; excess heat from a jumbo El Niño brewing in the Pacific, and the warmest year on record, worldwide, will continue to flavor Minnesota’s weather. I still see a warm bias into spring. We will have winter, but odds are it won’t be as savage as usual.

Showers and thunderstorms are likely today. But a stretch of beautiful weather returns Friday into Sunday with highs near 80. A shower may pop up Sunday night, but another surge of warmth will push the mercury past 80 again next week, based on the “Euro” model.

It was the third-best summer of weather since 1903. September has been just as amazing.