Excessive Heat in Minnesota, June 20 to 22, 2025

Name: Excessive Heat in Minnesota, June 20 to 22, 2025
Start: 2025-06-20T12:00
End: 2025-06-22T20:00
Location: Minnesota

June 20 to 22, 2025 · NWS ABR · 1 event in 1 county or zone

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.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS ABR wrote it up.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before the first event at Jun 20, 11:48 AM CST, 12 minutes earlier.

Area forecast discussion, Jun 20, 11:48 AM CST, 12 minutes before

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Hazardous weather outlook, Jun 20, 4:09 AM CST, 7 hours 51 minutes before

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In the hours before

Local storm report, Jun 20, 10:14 AM CST, 1 hour 46 minutes before

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Local storm report, Jun 20, 10:22 AM CST, 1 hour 38 minutes before

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Local storm report, Jun 20, 10:28 AM CST, 1 hour 32 minutes before

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Local storm report, Jun 20, 10:32 AM CST, 1 hour 28 minutes before

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Local storm report, Jun 20, 11:14 AM CST, 46 minutes before

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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 excessive heat. Local standard time, as filed.

Excessive Heat, Big Stone

When: June 20, 12:00 PM CST to June 22, 8:00 PM CST
Where: Big Stone forecast zone
Reported by: AWOS
Coordinates: 45.426, -96.411 (the zone’s center; the record gives no point)

What these are

Excessive Heat: Heat at or above the local excessive heat warning criteria, or heat that caused deaths.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Minnesota in 2025 Every state in 2025 This day in weather history Warnings in Minnesota, June 2025

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1272151.