Excessive Heat in Olmsted, Minnesota

Excessive Heat June 29, 2026 · Olmsted, Minnesota

What the National Weather Service wrote

Extreme heat moved into the region for the afternoon and early evening hours on June 29th bringing heat indices of 101 to 104 degrees across Olmsted County. The highest heat index in the county of 104 degrees was reported in Stewartville.

The wider storm

On June 29th, a favorable synoptic weather pattern brought extreme heat to southeast Minnesota as ample moisture resulted in remarkably high dewpoints. Consequently, heat indices soared well above 100 degrees with numerous locations seeing heat indices of 105 to 115 degrees.

Source: NOAA Storm Events Database, event 1355142. Narratives are written by the National Weather Service forecast office that issued the report.

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