Upper Midwest Weather Alert: Early November Cooldown Spreads Across I-90 Corridor

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SIOUX FALLS, S.D. – A pale November sunrise creeps across the plains, lighting up bare fields and quiet neighborhoods under a cool, steady breeze. The air feels crisp but calm — a brief, gentle pause before South Dakota’s next push of chillier weather arrives midweek.

According to the National Weather Service in Sioux Falls, today will bring filtered sunshine and highs near 59 before clouds break late. Winds remain light from the west, then turn south Tuesday as warmer air nudges in. Highs will surge into the mid-60s Tuesday afternoon — a short-lived rebound before a sharper temperature drop midweek.

By Wednesday, cooler northwest winds return with highs only in the mid-50s, a clear sign that early winter air is edging closer. Lows will fall into the upper 30s to near freezing by Thursday morning, which could bring the first patchy frost of the month for parts of Lincoln and Minnehaha Counties.

No snow or precipitation is expected this week, but long-range models hint at a colder, wetter setup approaching the northern Plains by mid-November. Residents planning early Veterans Day events or weekend travel along I-90 should stay alert for changing conditions. The upcoming chill could mark the region’s next step toward its first measurable snow before Thanksgiving.

For now, it’s a pleasant stretch for cleanup, outdoor work, or late fall decorating — but jackets will be essential again by week’s end as the November pattern begins its inevitable turn.


Five-Day Forecast for Sioux Falls, SD:
Mon: 59/40 – Increasing clouds; light west breeze.
Tue: 64/37 – Sunny, mild; south winds near 15 mph.
Wed: 55/38 – Cooler; northwest winds 10–15 mph.
Thu: 61/41 – Partly cloudy; crisp morning.
Fri: 50/32 – Mostly sunny; colder air building in.