Excessive Heat — Big Stone, Minnesota
2025-06-20 to 2025-06-22 · Big Stone, Minnesota
Wider weather episode
Three days of high heat and humidity would result in heat index values topping out at 106 degrees in Clinton and at the Ortonville Municipal Airport on June 20th, 118 and 108 degrees on June 21st and 111 and 116 respectively on June 22nd.
Source: NOAA Storm Events Database, event_id 1272151. Narrative written by the NWS forecast office that issued the report.