A cool upper level trough moved across the region, bringing showery weather and lowering snow levels down to five thousand feet. As the system exited the region, skies cleared and temperatures plummeted into the twenties and thirties, resulting in widespread unseasonably cold conditions and frost.
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.
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.
The episode as NWS MSO wrote it up.
A cool upper level trough moved across the region, bringing showery weather and lowering snow levels down to five thousand feet. As the system exited the region, skies cleared and temperatures plummeted into the twenties and thirties, resulting in widespread unseasonably cold conditions and frost.
The national radar mosaic for the moment the first event began.
1 winter weather. Local standard time, as filed.
A social media report from Dixie, Idaho indicated winter weather conditions. To the south of Grangeville, the snow level fell to fifty three hundred feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2026Every state in 2026This day in weather historyWarnings in Idaho, June 2026
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 2026-10-01. Each event’s entry at NCEI: 1348917.